If the tail is particularly long, they are referred to as “ribbontails” (but still classed as Fantails).eval(ez_write_tag([[580,400],'fishkeepingworld_com-leader-1','ezslot_4',114,'0','0'])); Occasionally, this variety has telescope eyes. Carps live in slow-moving rivers and lakes with dirt lining the riverbed. BUBBLE EYE FANCY GOLDFISH FANTAIL COLDWATER FISH . After a few days, the eggs will hatch, releasing many tiny fry. coldwater loach-shubunki ns . £9.95. Cold water fish, such as cod, salmon, sardines and tuna, are packed with protein and omega-3s. Copyright © 2021 - Fishkeeping World - All Rights Reserved. Fancy Goldfish are varieties of uniquely shaped goldfish that are almost a complete contrast to the common goldfish we are used to. Cherry shrimp are native to the mountain streams of Taiwan. The Hillstream Loach is all too often sold as a substitute for the better known Plecostomus, which, although they resemble in appearance, are quite a different fish.Â, Whereas Plecostomus are in the catfish family and are very unfussy in terms of their environment, Hillstream Loaches have very particular requirements that need to be met to keep them happy and thriving.Â. Angelfish and Dwarf Gourami are some possible larger options. How To Look After Fancy Cold Water Goldfish Goldfish are all domestic mutations from a wild carp in China, which is not even gold coloured. Required fields are marked *. Ensure a tightly fitting lid on your tank, too, as this is a fish that sometimes likes to ‘get air’!Â. The iridescent shimmer of an Everglade Pygmy Sunfish is a real sight to behold and present an outstanding possibility for the cold-water aquarium. They became popular in western countries during World War 2, but Bubble Eye Goldfish originated in Asia. With time they may also accept dried food, but since this species is normally caught in the wild, it is strongly advised to offer them a menu that resembles that of their natural habitat. You’re further restricted by their long fins. The main consideration when it comes to hosting Paradise fish is its territorial and rather aggressive tendencies. They are inexpensive too, with individuals costing under $5. Avoid using glass bowls instead of standard aquariums. Single tailed varieties tend to thrive in cooler water than fancy goldfish, swim much faster, and are more competitive for food. If you don’t think they’re for you, other varieties of Fancy Goldfish might be, like the popular Black Moor Goldfish. Enjoy them as part of a balanced diet to keep the pounds off. It is therefore usually recommended to keep them in a species tank or perhaps with one or two other gentle species too. Here, you can find out everything you need to know about keeping fish and aquarium maintenance. They will happily mate in captivity if conditions are ideal, so. Some people like to keep Goldfish in ponds. You could add an air/water pump to move and oxygenate the water, but don’t feel you have to. See more ideas about goldfish, aquarium fish, beautiful fish. Goldfish are known as cold water fish because they can live in temperatures of 50-70°F. Are Fantail Goldfish Suitable for your Aquarium? Whereas common goldfish get far too large and fast for most aquariums, the fancy goldfish has a much calmer and more placid character. Your Guide to Cherry Shrimp and Their Care, 7 Types of Rasboras (A Handy Guide to These Fish). Learn more: Your Guide to Cherry Shrimp and Their Care, Although most crayfish grow quite large and can pose a threat to many of your community tank members, Dwarf Crayfish are rather different. Although there are many tropical fish unsuitable for cold water conditions, there are also a myriad of species that can only be kept at lower temperatures. Fantails are messy; they eat a lot which produces lots of waste.eval(ez_write_tag([[300,250],'fishkeepingworld_com-portrait-2','ezslot_33',121,'0','0'])); Fancy Goldfish can easily develop digestive problems because their organs are so compact in their bodies, so it is important to design a healthy diet. In an aquarium, cold water means water whose temperature is at or below 20 °C (68 °F). Live and frozen foods (moist foods) are better choices as they retain their nutrients. If you do want bottom feeders, you could get some Corydoras Catfish, Kuhli Loaches, or Otocinclus. Fantails are the most suitable Fancy Goldfish variety for keeping in ponds because they are so hardy. They are a very peaceful and hardy genus, perfect for the beginner. Having read through our list of cold water aquarium species, we are sure there will be something for everybody to get excited about. If the aquarium has been designed properly, your main job will just be keeping it clean. Known as breeding stars or breeding tubercles, these goldfish variant requires a minimum tank capacity of 20 gallons with water temperature and pH level maintained at about 62 to 71 degree Fahrenheit and 7.2 to 8 respectively. Their hardy nature makes them great for beginners trying Fancy Goldfish for the first time. If you are looking for fancy goldfish for your aquarium fish tank, we have a collection of high quality livestock available to buy online. When viewed from above, the tail appears as a triangle, which is where the term ‘Fantail’ comes from. The fish have been selectively bred since the first gold form was recorded over 1500 years ago. The Weather Loach is so-called because of its remarkable talent at being able to predict the weather! A tank with a good cover of plants and some carefully chosen pieces of driftwood will make a stunning backdrop and a good home for Paradise fish. They can be social together and you do not need to worry about compatibility problems. item information. 8 Great & Easy To Take Care Of Fish For Beginners. Your email address will not be published. £35.00. Although these Rice Fish may tolerate tropical temperatures up to 75°F, they will do much better and live longer at typical room temperature without a heater.Â, Their beautiful, shimmering appearance when kept in larger shoals can be mesmerizing. Cherry Shrimps are even easy to breed, but if you’re serious about this, you’d be better off giving them their own breeding tank to protect their fry. They also really appreciate regular doses of plant-based food, as the animal protein in most fish foods is only partially digestible to goldfish.Â. Their beautiful grey, speckled flanks, and orange fins make them a delightful possibility for the cold water aquarium.Â. In media they are usually depicted as simple plain orange fish. Weather Loach (Misgurnus Angullicaudatus), 8. The solution is to buy medication. This means that in a home with heating and air conditioning, there is no need to use a heater inside the aquarium because goldfish can live at room temperature. Buy Cold Water Live Aquarium Fishes and get the best deals at the lowest prices on eBay! In their natural habitat, water temperatures can range from anything down to 55°F, up to 86°F, so this species has a truly huge range!Â, A very colorful shrimp, they make an ideal choice for first time invertebrate keepers – as they simply require a clean tank with cycled water and some living plants to keep them happy. Green vegetables are good for this, most people have foods like lettuce and zucchini in their kitchen. Orders under £75 are subject to a £14.95 Delivery Charge Some people like to keep Goldfish in ponds. There should be few outbreaks in a clean tank, but these fish catch diseases more regularly than most. All Fancies are at risk of swim bladder disease. Easy to keep and highly suitable for the beginner – their dainty charm makes them a top choice for fish keepers of all levels.Â, They prefer to live in shoals of six or more and will be at their brilliant best, dashing about in groups of at least ten. Larger varieties (like Comet Goldfish) are a safer option though.eval(ez_write_tag([[250,250],'fishkeepingworld_com-sky-3','ezslot_36',116,'0','0'])); Choose a soft substrate to cover the bottom of the tank. Please note, we only send our Live Fish & plants on a signed for service. This is a sub-species of the Japanese Rice Fish, which is more silver-grey than this golden selection. As with most other tetras, these fish are very easy-going and eminently suitable for the beginner.Â, Another beautiful schooling fish from South East Asia, the Odessa Barb, is quite happy in temperatures down to 65°F, making them a fine candidate for cold water aquariums kept at room temperature.Â, The radiant red cord running right down the length of their body, coupled with their striking black vertical stripes, makes them really standout, and a shoal of well kept Odessa Barbs can be a stunning spectacle.Â, They are best kept in numbers of at least six, and this will also reduce their fin nipping tendencies. without risk of them being eaten. Most of the considerations are the same for keeping a freshwater tank, with or without a heater – just so long as you make sure your room temperature is kept within the appropriate range. What Are the Advantages of Keeping a Cold Water Tank, Over a Tropical One? Keeping them in groups of their own kind is the safest choice. Infusoria. Try to include at least some fresh or frozen food, though, as this will help in providing all of the nutrition they need to molt successfully.Â. Hornwort is a good option, it can be planted in the substrate or floated on the surface (but do not block all the light from above). We also sell weather loach (season permitting) that are suitable for coldwater aquaria. From their exotic appearance, one might assume that this was a fish of tropical climes, yet Pygmy Sunfish actually much prefer cold water and shouldn’t be kept in a tank with a heater at all.Â. Their hardy nature makes them great for beginners trying Fancy Goldfish for the first time. They will do this readily in the aquarium since they are quite easy to breed in captivity. Many of the sought-after features on Fancies shorten their lifespan. They will clean up leftover food when they head lower down too. Also known as the ‘Dojo Loach’, the two varieties commonly available are golden or silver with black spots. They also prefer to have a few other members of their own kind to keep them company. Natural populations don’t exist in the wild. Danios are a classic community aquarium member, of both tropical and coldwater setups. Japanese Koi Carp. This causes buoyancy issues, so the fish would either be floating at the surface or sitting on the substrate. These include the ever-popular Zebra Danio, Leopard Danio, and Long-finned Danios. Croaking Tetra (Mimagoniates Inequalis), 11. This reduces the amount of options available to you. You could use daphnia, brine shrimp, or bloodworms.eval(ez_write_tag([[300,250],'fishkeepingworld_com-leader-3','ezslot_19',122,'0','0'])); Try to supply some plant matter too, as this contains fiber which helps the digestive system. There are two main things to consider when choosing tank mates: the water temperature and your Fantail’s long fins. This will likely be the most restricting factor when starting your aquarium because it limits the number of possible tank mates. . Please note, we are ONLY able to DELIVER livestock on WEDNESDAYS.. Orders must be placed by 2pm Monday to get delivery on Wednesday any orders after 2pm will be put onto the following weeks schedule. This includes the typical egg-shaped body and paired fins. The filter should be sited just below the water level so that when the water is pumped back into the aquarium, this causes a ârippleâ effect at the surface. Occasionally, this variety has telescope eyes. Their natural habitat is that of streams, ditches and rice paddies, and they will enjoy any tank setup providing they are given adequate space to open up their throttle once in a while! Mixing my tropical and cold water fish at 24-25 degrees and very happy.. please rate subscribe and comment. Corydoras species are renowned for their easy-going nature, endearing demeanor, and their generous habit of cleaning up any debris that falls to the aquarium floor. If you don’t think they’re for you, other varieties of Fancy Goldfish might be, like the popular, The Complete Guide to Aquarium Plants eBook, The Complete Guide to Vampire Shrimp Care. When ready to mate, the male will start circling the female. While many are, there are so many more that have distinctive colors and shapes.eval(ez_write_tag([[250,250],'fishkeepingworld_com-medrectangle-3','ezslot_17',152,'0','0']));eval(ez_write_tag([[250,250],'fishkeepingworld_com-medrectangle-3','ezslot_18',152,'0','1'])); Fantail Goldfish are truly unique creatures. This means minimizing the use of dried foods (e.g. Hillstream Loaches, however, do resemble Plecostostomus in that they are good algae eaters! Most freshwater aquariums are tropical, but Fantails need a cold-water setup. Thank you. The only essential piece of equipment is a filter. In the wild, these fish inhabit shallow streams of Asia with a slow to moderate current. £18.95 postage. If she is impressed with the courting, she will spawn with him. Often kept in tropical aquariums, the Panda Cory is also adaptable enough to do well in an aquarium without a heater, providing the room temperature is kept reasonably warm.Â. They also have a strong preference for fast-flowing, oxygen-rich waters, and so require an extra highly powered filtration system. These fish naturally occur in Oriental rice paddies, hill streams, and rivers, and one of their companions in the wild is the White Cloud Mountain Minnow. There should be few outbreaks in a clean tank, but these fish catch diseases more regularly than most. These are usually too small, especially when your fish reach maturity. , lacking characteristic features that other varieties have, such as bubble eyes. This video details simply, how to correctly mix cold water and tropical fish, resulting in happy, healthy fish with a diverse looking aquarium. Fancy goldfish (Carassius auratus) Fancy goldfish are the most common type of subtropical fishes kept in aquariums. We are going to talk through how to properly care for Fantail Goldfish. Due to their need for speed, this species is best kept in tanks of 20 gallons or more to allow them space to let fly.Â. Cleaning the tank regularly is therefore essential for maintaining a healthy environment. They are ideal for cold-water setups and can even be kept in ponds. The information, content and material contained on the site is intended to be of a general nature only and is not intended to constitute professional/medical advice. Variety of Fancy Goldfish for Sale at All Pond Solutions. Fantails are messy; they eat a lot which produces lots of waste. Starve them for 24 hours, then start introducing foods that are full of fiber, like vegetables. This fish loves to dig, and their sensitive bellies were never designed to borrow into coarse, sharp gravel. We’re thrilled to have you as part of our community. supports HTML5 video. Many species of aquarium fish simply aren’t suited to warmer waters, and for the beginner or enthusiast alike, there is a whole array of species to get you positively reeling about. are good companions. While many are, there are so many more that have distinctive colorsand shapes. They are otherwise unfussy and will tolerate temperatures down to 65°F. , it can be planted in the substrate or floated on the surface (but do not block all the light from above). You can add some small invertebrates without risk of them being eaten. They are also quite fussy eaters and prefer a frozen or live diet of brine shrimp, mosquito larvae, or daphnia. Goldfish Temperature: The Ideal Water Range for a Tank/Pond One of the most renowned of all pet fish – the fancy goldfish is a classic choice for the cold water aquarium. The ideal temperature range for these fish is low compared to the preferences of other popular aquarium species. Fancy - Water Fish Breeders have produced rarer colors though, like calico, white, black, and even Fantails with the patchy design of Japanese Koi. It makes it hard for them to compete for food too. Fancy Goldfish were selectively bred in captivity across Asia, in countries like China and Japan.eval(ez_write_tag([[300,250],'fishkeepingworld_com-box-4','ezslot_3',111,'0','0'])); Fantails are the simplest form of Fancy Goldfish, lacking characteristic features that other varieties have, such as bubble eyes. Bubble Eye Goldfish (or Water-Bubble Eye Goldfish) is a type of Fancy Goldfish. …..and a couple of favorite cold water invertebrate to cap off our list! Only give them an amount they can finish within 2 minutes. Yet, this member of the gourami family is quite happy in water temperatures right down to around 55°F. Fancy Goldfish were selectively bred in captivity across Asia, in countries like China and Japan. Save my name, email, and website in this browser for the next time I comment. This can be achieved through extra high powered filter heads, which should constantly turn the surface of the water. Just be sure not to overstock the tank. , white, black, and even Fantails with the patchy design of Japanese Koi. Standard aquarium lights are fine. Red), FAQs about Keeping Cold Water Aquarium Fish. Infusoria is high in protein, which is needed for growth, making it a good choice. The Dracula Minnow is another small, cold-water fish that can be kept without a heater, because of their preference for water with room temperatures. details about fantail fancy goldfish- -live coldwater fish!! Their potentially large size makes them suitable only for larger aquariums, of at least 40 gallons or more. Stocked with care and consideration, the cold water aquarium may even exceed the marvel of its tropical counterpart. Fish; Cold Water; Fancy Goldfish; Fancy Goldfish. The Weather Loach prefers the company of its kind and will be much happier if kept in groups of six or more. Some are available in stores, others are given out by veterinarians. Once you have identified a sick fish, transfer it to a quarantine tank. These will not develop until the fish is six months old, so it can be hard to tell if juveniles will have them or not. Welcome to Fishkeeping World. This can be achieved with a thick cover of floating plants, and in general, this is a species that will appreciate a densely planted aquarium.Â. Just be sure not to overstock the tank. Proper filtration and frequent partial water changes will make all the difference for this fish – from merely surviving to truly thriving. Here Iâve mentioned 19 fish and invertebrate species that will do well in a cold water ⦠Your email address will not be published. Goldfish are the classic aquarium species. I would add 3 fancy goldfish (1 Black Moor, 1 Oranda, 1 Ryukin). Do not use decorations with sharp edges either. Each individual’s lifespan is short, at only around 1-2 years. Read Article: The Best Ways to Raise the pH of Your Aquarium. The water temperature can vary dramatically between habitats, some being tropical and some being cold-water. They are particularly suitable for the care of fish species from Central Europe. Although this fish is a popular choice for first-time fish keepers, Fancy Goldfish will do much better under a high level of care. Other members of this family include the closely related Carps. Our aim is to help educate anyone who wants to keep fish. Just hoping now that the snow doesn't last as we can't ship them in this weather See More UK fancy fish Their organs are squashed up inside their body, which can make them more susceptible. The minimum tank size is 20 gallons, but the more space you provide, the more likely they are to stay healthy. Even beginners can give them a go, but be aware that they are pron⦠Still, they will also tolerate any tank down to 20 Gallons – as an absolute minimum.Â. Feed them small foods that can fit in their mouths. They don’t necessarily shoal, but will often interact with each other. Save my name, email, and website in this browser for the next time I comment. By the end you will know how to design the perfect tank, choose suitable tank mates, and avoid those pesky diseases. They will provide plenty of shelter and help to keep the water clean. The Allure Of Cold-Water Fish; The Best Cold Water Fish For A Low-Maintenance Tank. One does, however, need to select their tank mates with careful consideration…, Since Cherry shrimps only grow to around 1.5 inches in length, they make a very tempting snack for larger species such as fancy goldfish. Choose some decorations that offer a few hiding spots, reserve most of the available area for swimming spaces and plants. Natural populations don’t exist in the wild. You’re further restricted by their long fins. It is only then, with all of their needs met, that this fish may feel at home enough to show off their astonishingly striking red fins in all of their glory. The tank I am getting is an Aqua One 620t fish tank which has a 130 litre capacity and a good filtration system. When viewed from above, the tail appears as a triangle, which is where the term ‘Fantail’ comes from. We stock a variety of indoor cold water, or room temperature fish. As slow swimmers, Fantails can’t escape from fish that bother them. To view this video please enable JavaScript, and consider upgrading to a Another species suitable only for the expert, the Pygmy Sunfish has unique requirements for its well being: Firstly, it is a tiny and shy fish, that really won’t appreciate the company of boisterous companions. , so the fish would either be floating at the surface or sitting on the substrate. These are usually too small, especially when your fish reach maturity.eval(ez_write_tag([[300,250],'fishkeepingworld_com-leader-2','ezslot_16',136,'0','0'])); Aim to have 8 gallons of water per fish because though they will group together sometimes, they also like swimming off on their own. Different sizes from small fantails to large chunky Fancy goldfish means we cater for the beginner with their first tank through to customers with large coldwater set ups who require big fancy goldfish. The temperature change should be gradual, so the fish aren’t shocked. Do not keep them alone though. Robert Woods is the creator of FishKeeping World, a third generation fish keeper and a graduate in animal welfare and behavior. Beginners can look after Fantails, providing that they’ve done their research. Good tankmates would be others from similar environments such as Mountain Minnows and Loaches.Â, Males can be territorial with one another, but any serious squabbles can be averted by giving them a spacious tank with plenty of hiding places.Â, Although a 15-gallon tank is sometimes advocated for this species, they will be much happier in an aquarium with a large surface area and at least 25 gallons of water.Â. Always keep them in pairs or ideally in larger groups to keep them happy. All Fancies are at risk of swim bladder disease. What Are the Differences Between Keeping Tropical Freshwater Fish and Cold Water Fish? Some of the plants sold for tropical tanks may not be suitable for cold water environments; however, and cold-water conditions can also potentially host different pests and diseases to warmer water.Â. Breeders have produced rarer colors though. 1 Fancy Goldfish; 2 White Cloud Mountain Minnow; 3 Rosy Red Minnow; 4 Asian Stone Catfish; 5 Weather Loach; 6 Paradise Fish; 7 Medaka Ricefish; 8 Odessa Barb; 9 Rosy Barb; 10 Gold Barb; 11 Pygmy Sunfish; 12 Bloodfin Tetra; 13 Platy Fish; 14 Panda Corydoras; 15 Mosquito Fish; 16 ⦠Your email address will not be published. Carps live in slow-moving rivers and lakes with dirt lining the riverbed. He is also a proud member of the Association of Zoos and Aquariums, the Marine Aquarium Societies of North America and the Nature Conservancy. Bacteria colonise on this sponge and break down the waste produced by the fish. In media they are usually depicted as simple plain orange fish. Varieties include Fantail, Ryukin, Lionhead, and many many more. What fish can I put in my tank if I donât have a heater? Overfeeding could be the problem. £18.95 postage. Though they may still look hungry, don’t feed them extra food because they would happily eat all day. Dwarf Dragon Goby (Rhinogobius Duospilus), 13. web browser that They are ideal for cold-water setups and can even be kept in ponds.eval(ez_write_tag([[250,250],'fishkeepingworld_com-banner-1','ezslot_10',154,'0','0'])); You should be able to find a local stock of these fish with little difficulty. Increase it by 3°F a day, making sure not to raise it above 75°F. As Coldwater aquariums are called, who do not have heating and some even incorporate a refrigeration unit to create the optimal living conditions for its inhabitants. They are also often known as ‘Medaka Rice Fish’. Empire Gudgeon certainly make a new choice for the cold water aquarium. Everything about its exotic, colorful appearance immediately conjures up images of the tropics. To ease the workload for their digestive system, feed your fish small amounts twice a day. Be careful, as they can be very tempting for fin-nipping fish. Also known as the ‘Celestial Pearl Danio’ – these schooling fish need the company of their own kind and do best in groups of six or more. . A dark, sandy substrate, some smooth pebbles, and stemmed plants will make them feel well cared for. Yellow Princess Rice Fish (Oryzias Latipes), 9. They have majestic double anal and caudal fins that flow behind them as they swim. Cherry Shrimp (Neocaridina Heteropoda var. RED & WHITE FANCY GOLDFISH FANTAIL COLDWATER FISH . If the tail is particularly long, they are referred to as “ribbontails” (but still classed as Fantails). They will happily clean your tank’s glass for you night and day – although it is a good idea to allow a good film of algae develop in the tank before introducing this fish to make sure they have plenty to eat. You can easily purchase them at your local fish store or aquarium society auction, and sometimes even major pet store chains will carry them. Members of the Camberellus family (including Dwarf Orange Crayfish, Mexican Dwarf Crayfish, and Cajun Dwarf Crayfish) grow no larger than around 2 inches in size and make excellent tankmates for most small to medium size community fish.Â, Fairly easy to keep, they prefer a varied diet of just about any kind of food you’d feed to the other members of your tank. As they hail from very fast-moving rivers and streams of China, they demand a similar oxygen-rich and fast-flowing environment in the aquarium. eval(ez_write_tag([[300,250],'fishkeepingworld_com-mobile-leaderboard-1','ezslot_22',138,'0','0'])); Female Betta Fish: The Queen of the Aquarium, The Best Ways to Raise the pH of Your Aquarium. This makes them one of the hardiest. Therefore only accommodate them with the smallest and most peaceful fellow tankmates – such as White Cloud Mountain Minnows, Corydoras species, etc.Â. âTemperateâ fish are being increasingly seen in the UK market. Well looked after, your Fancy Goldfish could live for over 10 years! Fancy Goldfish love interacting with each other, and should never be kept alone. Your cold water fish tank should also include a few plants and decorations, so there's plenty of space for your fish to explore or hide away if they wish. Cold water aquariums aren’t just something for beginners who haven’t yet progressed to tropical tanks; they present a whole other world of fish keeping possibilities. Overfeeding could be the problem. They still have the fancy features that separate them from other Goldfish, like Comets. Do not keep them alone though. Fish Keeping World is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and any other affiliated sites. Pick hardy species though, because your fish might nibble or dig around them. Remove any uneaten food from the tank so that they cannot be broken down to release toxins.eval(ez_write_tag([[250,250],'fishkeepingworld_com-narrow-sky-2','ezslot_28',123,'0','0'])); Fantails will dig from time to time so ensure that the substrate is fine-grained to avoid scratching. or Best ⦠Everglades Pygmy Sunfish (Elassoma Evergladei), 15. The water temperature can vary dramatically between habitats, some being tropical and some being cold-water.eval(ez_write_tag([[468,60],'fishkeepingworld_com-large-mobile-banner-2','ezslot_8',158,'0','0'])); Plants would be abundant, with many of them floating on the surface. Remove any uneaten food from the tank so that they cannot be broken down to release toxins. Make sure the plants are suitable for the types of fish you have, or if you have plastic plants, make sure they're appropriate for fish ⦠This Tetra gets its intriguing name from its courtship ritual, where the male uses a modified breathing organ to make a sound resembling a frog – presumably to attract the attention of females! Whereas common goldfish get far too large and fast for most aquariums, the fancy goldfish has a much calmer and more placid character. Not the easiest of fish to keep, the bottom-dwelling goby doesn’t much like dried foods, and so will only really flourish when fed on fresh or frozen foods such as mosquito larvae, brine shrimp and daphnia. These fish species thrive in hard water: Fancy Goldfish; Snakeskin Gourami; Peacock Eel; Bloodfin Tetra; Blue Neon Cichlid; Buenos Aires Tetra; Emperor Tetra; Paradise Gourami; Pristella Tetra; Red Eye Tetra; Roseline Torpedo Shark; Tanganyikan Butterfly Cichlid; 1. ⦠Molting is the periodic shedding of the skin in crustaceans, and your crayfish will really appreciate some good hiding places to carry out this process in private! At their best, this fish can be absolutely stunning, but for them to feel really at home, they demand many special requirements to be met. There are lots of different ones, but they are easy to see because they tend to present as color changes and spots. They are social creatures that enjoy having company. Live and frozen foods (moist foods) are better choices as they retain their nutrients. Other members of this family include the closely related Carps.