The Cuckoo Catfish (Synodontis multipunctatus) is a fascinating and dynamic species of upside-down Catfish. Distribution. does absolutely fine. Select options Details. 0 – 7. However, several factors can shorten that time significantly. Upside-down catfish. These fish spend upwards of 90% of their time in the inverted position and have a reverse colour scheme to most fish – with their belly being darker than the dorsal area. While Cuckoo Catfish can be quite aggressive and territorial towards other Catfish species, they are relatively peaceful and. Cat-eLog Mochokidae Mochokinae Synodontis nigrita Image 10 of 13. 0 to mimic their natural habitat. 5" long) and he's happy as a clam. So I started fish keeping at the beginning of October 2015. Some species are also known for naturally swimming belly-up, earning the name upside-down catfish. 00. 5 cm) Average purchase size : 1 - 2 inches (2. 5 corydoras. Some geographical restrictions apply See shipping. Upside-down catfish are small fish that reach an adult size of 3. Although this fish when caught seldom exceeds 500 grams in weight. 0 and 8. Cuckoo Catfish (Synodontis multipunctata), Tank-Bred. False Julii Corydoras Firemouth Cichlid Flying Fox Fish German Blue Ram Giant Danio. 009. The tank should have a water level of 6 inches, and there should be enough plants to hide away in. Synodontis nigrita, known as the false upside down catfish, Wikiwand is the world's leading Wikipedia reader for web and mobile. However, in their natural habitat, these catfish can sometimes reach slightly larger sizes, up to 6 inches (15 cm). Its name is derived from columnar-shaped bacteria, which are present in virtually all aquarium environments, though it has also been referred to as cotton wool disease, saddleback disease, guppy disease, or cotton mouth disease. I also have one albino cory (getting more soon). Upside Down Catfish are omnivores who thrive on a combination of flake meal and flesh, such as frozen brine shrimp or freeze-dried bloodworms. Many fish—especially popular varieties for aquariums—also have any number of nicknames. Description. I often see him out and swimming about. Like its name, the Upside-Down Catfish displays quirky and unique behavior. – Refusal to consume food. 0 and 8. Dwarf Petricola, False Cuckoo catfish: Care Level: Easy: Lifespan: 20 years: Max Size: 3. Super Schwartzi CW028 Cory. 00-+ Add to cart. Staples in freshwater community tanks, Corydoras Catfish are hardy fish that can be kept even by beginners because they’re easy to keep and do well even in 20-gallon tanks. Species Information. 068. Mine have a wider color variation than most pics I've seen, and are about 3 inches long, Whisker, tail and ray count match the specs. A widespread species that has been recorded in Egypt, Nigeria, Mali, Senegal, Guinea Bissau, Ghana,. Fish Scientific Name: Mystus Leucophasis. In fact, upsidedown cats should be kept in 30+ gallons to start with, as should most goldfish. MMH. Pendants made in the shape of the upside-down catfish was a popular. Abstract The patterns of electric discharges were studied in two species of upside-down catfishes, Synodontis clarias and S. 79. In Conclusion. Is it true that you don't see. Oct 28, 2020. 6% of tank pictures in this category. Be careful not to overfeed, they are piggish eaters. This species is native to the Congo Basin in the Democratic Republic of the Congo and the Republic of the Congo. The Chari River’s animal life, however, is still considered to be a rich ecosystem that thrives even today. This catfish is notable for its occasional upsi How big do bumblebee catfish get? At a typical adult size of 6 inches (15 cm) , it is a perfect bottom dweller for the medium to large aquarium and it is an excellent tankmate for most other fish that are too large to be considered prey. 0E2CCF2A-598A-44B8-8E32-342E9ABC80E1. Fandom Apps Take your favorite fandoms with you and never miss a beat. False upside down catfish are often a light brown and have dark spots covering their bodies. The Pangasiidae, or Shark Catfish, includes some of the largest Catfish species on the planet. Jan 10, 2023. Swimming Catfish. . Synodontis nigriventris, the blotched upside-down catfish, is a species of upside-down catfish native to the Congo Basin of Cameroon, the Democratic Republic of the Congo and the Republic of the Congo. The following water conditions are acceptable, 75-82° F, KH 4-12, and pH 6. 5 feet (3. We guarantee fresh and 100% live arrival and next-day delivery across the USA. In conclusion, most fish do not sleep upside down. 00. I know that goldfish arent really compatible with catfish but i had a tank break about 6 months ago and didnt have much of a choice. So a shoal can be kind of difficult. I have a couple true upside-down catfish and their dorsal fins are kind of large, with a spine-like first ray. 00. This next list of common fish is broken down by common name and then by species. Aquatic Arts offer the best Freshwater fish online in the US. The type specimen is in the Muséum National d' Histoire Naturelle de Paris. The synos in the shop are dark brown with black spots. 0 – 7. Synodontis is the most widely distributed mochokidae genus, occurring throughout most of the freshwaters of sub-Saharan Africa and the Nile River system. But swimming belly-up actually helps it camouflage and breathe better than its right-side-up cousin. In ostariophysan: Annotated classification. The one that was lighter in the picture has developed spots and is getting lighter! So maybe I actually do have 2 different catfish in there. 2 inch. Two of the catfish about 2 1/2- 3 inches and the third is about 4 inches. False Upside Down Catfish $ 59. The minimum tank size recommended for this fish is 20 gallons long. Upside Down Catfish. Before spawning the couple (1 male and 1 female) are put separately and fed well. :fish: 75 gal mixed Malawi mbuna. Heat or cold packs will be included as needed at no extra cost. You should have at least a 150 gallon tank if you plan to keep a shoal; this will support 3-4 Pictus Catfish. Their unusual behavior have been fascinating humans for centuries. The name upside-down catfish is most commonly used by aquarists to refer to the mochokid catfish Synodontis nigriventris alternately known to ichthyologists as the. . A lot of there aggression comes from when you keep them by themselves, as they are schooling fish, and when in. membranaceus. Synodontis (Upside-Down) Catfish. These filters use both mechanical and biological filtration and have. They reach an adult length of around four inches and can be kept in a 30-gallon aquarium. Upside-down catfish - Synodontis nigriventris; One spot squeaker - Synodontis notatus; Ocellated. While some aquarists have not had any problem keeping these fish healthy in tanks as small as 10 gallons, we advise against it. For most fish, swimming upside down is bad news. This behavior leads to assumption that the catfish has a specified gravity information processing system. This catfish is usually around 3 to 4 inches long and can be brown, black, or yellow. Was 2 Upside down catfish now one that is in isolation. Microsynodontis. 99 each. Corydoras schwartzi. 66 Add to cart; Catfish – Marble Achara Catfish $ 49. The job of the swim bladder is to help the goldfish stay stable in the water and control the way in which it floats. Rating: 2. This is used to work out the maximum size of fish suited to your tank. 2) You can name your 'fishtank' here. Synodontis catfish are also scaleless. Humeral process ends in a point, sweeping up in a curve on the bottom edge. This is larger than a lot of aquarists think, maybe because a lot of translucent fish are on the smaller side. Synodontis eupterus: Lake Malawi syno: Synodontis njassae: Polka dot syno: Synodontis angelicus: Common syno, false upside down catfish: Synodontis. . Hi Brown Recluse! I'm just a novice but this is my short experience with upside down catfish. This catfish is notable for its occasional upside-down swimming behavior and its ability to produce. False Upside Down Catfish or Synodontis Nigrita is a species of upside-down catfish that can be found widely across the waters of Northern Africa. Out of stock. Family Mochokidae (upside-down catfishes) Bony shield on head and nape. The Upside Down Catfish is considered to be very hardy, and can survive in an aquarium of 30 gallons or more with lots of plants, and hiding spaces. (Large-spot catfish) Synodontis ocellifer: BOULENGER, 1900: Photo by: F. It was first described by French zoologist Achille Valenciennes in 1840. Bar = l cm. See also. Find near, nearer or same sized spp. It was first described by French zoologist Achille Valenciennes in 1840. Personally, I wouldn't even do catfish, I'd keep just peacocks, maybe some smaller gentler haps, like blue moorii. There are several species of catfish of the genus Synodontis native to the Congo basin that naturally swim upside down. Pseudomystus stenomus - False Bumblebee Catfish : May. . 0 to mimic their natural habitat. 54. 5 - 5 cm) All Aquatic Arts brand plants and animals come with a 100% live arrival guarantee, plus free email support! The Gold Nigrita Catfish is a very uncommon and impressive color morph of its species! On sale today for $ 24. Synodontis Petricola. These are a great fish for a community tank. Size to 60 cm. SUMMARY Synodontis nigriventris is a surface-feeding facultative air. Synodontis nigrita Valenciennes, 1840. Origin: West Africa. Out of stock. Fishes of the genus Mystus Scopoli are small to medium-sized bagrid catfishes occurring in South Asia. In conclusion, most fish do not sleep upside down. 12625-12627The true Upside-down catfish is a social species and is far more likely to be seen during the day when kept in decent numbers, especially when floating plants or similar surface cover provides refuge. Aquatic Specialist bringing Happy Fish for Happy People!. 8 in) S. No products in the cart. . They are called squeakers because they produce a squeaking […] The average upside-down catfish size is about 4 inches long when fully grown. These three-to-four-inch tropical fish mostly swim in an upside-down position, having developed this uniqueness while feeding under floating. Upside-down catfish are an undemanding fish and most tanks only require a hang-on-back filter. False Upside Down Catfish, Common Syno, Common Synodontis, Falsk Rygsvømmermalle , Lace Catfish, Nigerianischer Rückenschw. Need Help With False Upside Down Catfish (Synodontis nigrita) Jump to Latest Follow 2758 Views 2 Replies 2 Participants Last post by lbutler1221, Jan 18, 2019. 0. That’s going to be too crowded once the goldfish grows up. Shop Upside-Down Catfish (Synodontis nigriventris) and hundreds of other common and exotic freshwater aquarium fish direct from one of the leading aquarium fish breeders in North America since 1970. Small, Medium, Large, Extra Large. 7" SL 21. OverviewThe False Upside Down Catfish is widely distributed across much of Africa, where it inhabits quiet backwaters as well as ponds and pools. 8-78. There are nine genera and about 200 species of mochokids. Oct 24, 2012. False Boarfish (1) False Cleanerfish (1) False Clown Anemonefish (1) False Percula Clownfish (1) Fanfin. The upside-down catfish is a close relative of the cuckoo catfish, and both species originate in Africa. Thus, swimming upside down makes it easier to feed. Tank Size: 55 gallons. $ 15. can reach as far back as its caudal fin and along with its attractive body colouration makes it one of the most popular catfish of the genus, Synodontis. – Swimming slowly or not at all. 0-26. The problem is, the Catfish does hide pretty much all of the time. #2. I almost never see them. 5cm. I almost never see them. 12836-12837. Regular checks on water. Species Information. So I purchased a fish which at the store was labeled a "Lace Catfish - (Synodontis nigrita)" From what I was told it is an false upside down catfish, however when I search this, the fish that come up look nothing like what I have. These medium-sized and robust fish are both visually striking and exhibit intriguing behaviour. It is believed that they swim upside down because they often feed on the undersides of submerged branches and logs. If it's one of the other species then I personally. They are called squeakers because they. The Synodontis or “upside-down” catfish is native to rivers and streams of the Congo region of Africa. Like other members of the. Synodontis nigrita, known as the false upside down catfish, is a species of upside-down catfish that occurs widely in northern Africa. In a well-equipped aquarium, you will find it extremely easy to take care of your Upside-Down Catfish. They need lots of hiding spots during the day and should be. 2 m). As obviously as their name suggests, these species are complete upside down and are likely to turn some heads their way if you have them in your aquarium. True julii cories have a few characteristics that you can use to identify them if you've compared the. Ensure water hardness is within the suitable range of 5 to 20 dGH. Upside Down Catfish TRUE. I have never had fry kept with my upside down catfish. How would the upside down catfish fair with the zebra danios?. I wouldn't call them huge, like a sail, though. As its name suggests, red blotch disease is characterized by bloody sores on the skin, particularly along the belly. False Upside Down Catfish. 99 . Previous Image: Next Image: Image Details; Common Name(s)Catfish - upside down Cavefish - blind Cichlid. -13%. Upside-Down Catfish. In the aquarium. 1016/J. The Upside Down Catfish is an omnivore and should be offered sinking catfish pellets, freeze-dried bloodworms and tubifex, plus a good quality flake food. The hosts often expose shocking lies that turn the relationships upside down, making each episode an emotional roller coaster. Nomofish. KH 4-15. Generally false. References[edit]. The Featherfin Catfish is a pretty fish with delicate lacy fins and a polka dot patterning! The Featherfin Synodontis is considered to be one of the ‘upside-down’ catfish species. 80K subscribers in the AquaSwap community. The Upside Down Catfish (Synodontis nigriventris) is an interesting catfish that starts swimming upside down at around two months of age. While the “glass catfish” usually generate a lot of buzz and fascination, the ‘upside down catfish’ is quite a whole new phenomenon altogether. If you are logged in you can save up to 10 different fishtank lists. 30 gal hosp/quart,1 baby bristlenose. the fish dont bother it and he eats with the others and they let him, he is not scared of anyone. False Upside Down Catfish, scientifically known as Synodontis nigrita, is a type of upside-down catfish found mainly in North Africa. One of my five Upside Down Catfish was bloated (not that large) for several years. 00. Its ability to use sound to communicate and warn its fellow mates during spawning season is impressive. 5 cm) in length when kept in. How Big Do False Upside-down Catfish Get? May 9, 2023; How big do synodontis catfish grow? synodontis petricola, also known as the pygmy leopard catfish, is a catfish… F Fishing Tips. As to being true or false, I can't say. False Cuckoo Catfish Back to products Twig Catfish Upside Down Catfish Available In-Store Only Browse online and buy in-store. Upside-down catfish (Synodontis nigriventris) are one of the notable members of this family, known for their unique behavior of swimming upside down and. Lionfish. The fish is native to the River Nile and Niger River. Ammonia: 0ppm. nigrita has a dark gray background with black spots on the body and fins, giving it a ''lace-like'' appearance, hence the common name: ''lace catfish''. 9 inches (10. There are more than 165 species of cory catfish, many of which are excellent tank cleaners, as. Provided the right living conditions, they will survive and entertain for years. Feeding should occur later in the day as the fish wake up for their. The remarkable Upside-Down Catfish beautifully swims. It will eat also smaller fish and may bother slow-moving tankmates. However, a number of other fish may also be known by this name: Mystus leucophasis – Asian upside-down catfish Synodontis nigrita, known as the false upside down catfish, is a species of upside-down catfish that occurs widely in northern Africa. So for a school of 4 catfish you should count on a tank that is at least 50 gallons. 0-7. 0°C or 69. Step 2 - Switch to less messy foods and reduce feeding slowly. 5. The upside-down catfish belongs to the armored catfish family. Cories are certainly one of the most sought-after catfish in the world. The subreddit for anything related to aquariums! Come here to enjoy pictures, videos, articles and…ok, now i've upgraded my tank to a 200L Fluval roma, i feel i need more fish (was a Rekord 120 before) so atm i have: 1 x African knifefish 1 x reedfish 1 x delhezi bichir 1 x senegal bichir 2 x butterfly fish 1 x pair of kribensis 1 x bulldog plec (i know, not african, but no african plecs). Approximate Purchase Size: 1/4" to 1-1/2". These are the ideal water parameters for cory catfish: Temperature: 72-78° F (22-25° C) pH: 7. Maybe I'm just lucky but my true upsidedown catfish is very active night and day, sometimes swims upsidedown and rarely hides though there are plenty of hiding places in its tank. Red Tail Catfish $ 35. . " Synodontis batensoda (the "upside-down catfish"). Best kept with fast moving fish that are too large for it to eat such as barbs and boisterous cichlids. The type specimen is in the Musum National d' Histoire Naturelle de Paris. Although this fish when caught seldom exceeds 500 grams in weight. 8°F: pH: 6. The cuckoo catfish belongs to the family of Mochokidae, which is known as the upside-down catfish and squeakers, but not all members swim upside-down. 5 - 2 inches and the other is about 3/4 of an inch. The False Upside Down Catfish is widely distributed across much of Africa, where it inhabits quiet backwaters as well as ponds and pools. They are frequently found near cover such as driftwood, caves or plants. While the “glass catfish” usually generate a lot of buzz and fascination, the ‘upside down catfish’ is quite a whole new phenomenon altogether. The upside-down catfish very seldom spawns in a tank, that’s why to trigger the spawning process hormones injections are used. Leopard Catfish Plecostomus Spotted Catfish Upside Down Catfish Bumble Bee Catfish Charachins Black Neon TetraThe catfish use their barbels to find them, and since the barbels point downwards and the mosquitoes are above them, they have to swim upside down. Roberts (1994) recognized Mystus to have an elongate cranial fontanel reaching up to the base of the occipital process, long maxillary barbel, very long adipose fin. In stock. Tank water parameters should be the following: temperature 24—27;°C, pH about 7, hardness dH about 10°. They both need a tank that's at least four feet long. Keeping upside-down catfish in groups of 4 or more, with plenty of hiding places in a clean tank, is therefore the best defense against stress and unnecessary diseases. Upside down Catfish will swim upside down to feed off the water’s surface easier. The fish is a light brown color with a dark stripe running down its side. As obviously as their name suggests, these species are complete upside down and are likely to turn some heads their way if you have them in your aquarium. The water parameters for Upside Down Catfish should have a temperature range between 74-79°F (23-26°C). Use a reliable test kit to monitor pH levels, as well as other parameters like ammonia, nitrites, and nitrates. 10 years ago. I have bought an upside down catfish at Walmart a year ago and as it has gotten older it’s balls started to appear. What Rigs Are Best For Surf Fishing? May 9, 2023; fishfinder rig. Sometimes swims in an inverted position. Catfish – Duckbill Catfish Ageneiosus marmoratus $ 49. There are only 2 upside down catfish. nigriventris probably evolved from a diurnal or crepuscular `Chiloglanis-like' benthic ancestor and likely co-evolved with the inverted habit. Temp: 75-82 F. They can change color from dark brown with white speckles, to a pale almost white when frightened or unsure. Its genus Synodontis currently has over 131 recognized species. The name upside-down catfish is most commonly used by aquarists to refer to the mochokid catfish Synodontis nigriventris alternately known to ichthyologists as the blotched upside-down catfish or false upside-down catfish. Additionally, when choosing a tank you should find a design that has a wide top and lots of surface area. What size do. Fish usually sleep in an upright position, hovering in one position with a slight movement of the fins or body to provide them with oxygen. False Upside Down Catfish. 5 inches and does well at a water temperature in the range of 72º to 82º Fahrenheit, with a pH of 6. B. In summary, they can grow to anywhere from 9-12 inches and you'd need a tank that's at least 100 gallons. We find ourselves recommending them to other. But for the Upside Down Catfish, it is simply a way of life. Provided the right living conditions, they will survive and entertain. . The blotched upside-down catfish is well suited to aquariums because of its small size (typically 9 or 10 cm or less) and peaceful demeanor. The Burmese or Asian Upside Down Catfish is a unique, medium-growing species of Bagrid found in the rivers of Myanmar in Southeast Asia. Forum index. But swimming belly-up actually helps it camouflage and breathe better than its right-side-up cousin. cite web. False Upside Down Catfish, scientifically known as Synodontis nigrita, is a type of upside-down catfish found mainly in North Africa. everything upside down - semuanya terbalik; exploration upside - penerokaan terbalik;Synodontis Nigrita Yellow, False Upside-down Catfish, False Upside-down Catfish for sale, Synodontis Nigrita Yellow, Synodontis Nigrita Yellow for sale, Synodontis. It is better to keep a group of upside-down catfish together, with the average group size being between 4 and 6. Upside Down Catfish spend the daylight hours hiding in caves and their nights are spent swimming continually upside down. The ideal tank size for Upside Down Catfish should be at least 30 gallons. As the name implies, this unusual fish spends most of its life swimming upside down, with its mouth and ventral surface facing up towards the water. The remarkable Upside-Down Catfish beautifully swims upside down as its name suggests. For a fully grown-up fish, you need an aquarium that is at least 30 gallons in size equipped with a 30-inch aquarium hood. Mochokus. It also has another nickname – barredtail squeaker because of the black bars on its tail. The aquarium water temperature is not critical for these tropical freshwater fish, although 72° to 79° F (22° to 26 C°) is ideal. #1. Nov 26, 2020 - This Pin was discovered by Michele Britton. Yellow Nigrita Synodontis Catfish The Gold Nigrita Catfish (Synodontis nigrita), also known as the False Upside-Down Catfish, is a medium-sized catfish species with a unique and uncommon golden coloration as it matures. the other fish aren't aggressive except for our albino rainbow shark but. The Cuckoo Catfish (Synodontis multipunctatus) is a fascinating and dynamic species of upside-down Catfish. The species has existed for generations, and depictions of them may be seen on ancient Egyptian. The subreddit for anything related to aquariums! Come here to enjoy pictures, videos, articles and…Upside-down catfish are small fish that reach an adult size of 3. It is a wide-bodied catfish and is pale in coloration with many black spots. Food fishes. This synodontis is an omnivore and will eat flake food, pellets and frozen food. Its “flipped” orientation allows it to position its mouth close to the water’s surface, from. Synodontis decorus is a species of upside-down catfish. הצג את התרגום, ההגדרה, המשמעות, התמלול והדוגמאות עבור «False upside down catfish», למד מילים נרדפות, אנטונימים והקשב להגייה של «False upside down catfish»The Ultimate List of Bizarre Catfish Species. Δείτε τη μετάφραση, τον ορισμό, τη σημασία, τη μεταγραφή και τα παραδείγματα για το «False upside down catfish», μάθετε συνώνυμα, αντώνυμα και ακούστε την προφορά του «False upside down catfish»Hi, you do not say which type of upside down catfish you've got. Tank Size: 55 gallons. 00 $ 14. nigriventris in my collection, slight coloration differences (white or yellowish base color mixed with dark brown and black marbling) are observable. Scientific Name: During its juvenile years, the Common Syno grows quickly and as it ages starts to slow down, fully grown they will grow to over 13 inches in length. It represents a rare color morph within its species. Because of their large size and fairly aggressive and territorial nature, they make ideal candidates for single-species specimen aquariums. Ranked #7368 out of 7488 freshwater fish pictures worldwide. Shipping Size: Approx. was imbued with symbolic importance. Showing items 337-373 of 373. Hi does anyone here keep upside down cats (like the one in pic below ) and have any good or bad moments with them and any info Sent from my HTC One using Aquarium Advice mobile app Upside down cats - Aquarium Advice -. The upside-down catfish have been carved into Egyptian tomb walls dating back 4,000 years. . Minimum order value £30. Credit: WikipediaThe Upside-Down Catfish, scientifically known as Synodontis nigriventris, is a strange yet well-known species that has been loved by aquarists all over the world. – Inverted swimming. Like Chili Rasboras, keeping them in groups of at least 6 fish is a must. 99. nigroventris being one of them. . 144 votes, 15 comments. Some swim upside-down. Rated 5. Step 2 - Switch to less messy foods and reduce feeding slowly. The false upside down catfish can grow up to 13 inches in length. Like their well-known relatives, the Upside-Down Catfish Synodontis nigriventris, the featherfin can swim upside down at will. Please confirm Rate before placing order. Is it a Brachysynodontis batonsoda or the smaller synodontis nigriventris. 00. – Gill discolouration. . . 00. I never figured out why. Fishes of the genus Mystus Scopoli are small to medium-sized bagrid catfishes occurring in South Asia. Catfish - upside down Cavefish - blind Cichlid. They also use their dorsal fin to steer. 0-7. Discover a world of vibrant aquatic life at Upscale Aquatics, part of the Tropical Fish Company family. These fish spend upwards of 90% of their time in the inverted position and have a reverse colour scheme to most fish – with their belly being darker than the dorsal area. Size to 60 cm (24 inches). This catfish is also known for its tendency to sometimes swim upside-down as well as its ability to squeak or croak when removed from the water. This applies to me mainly but suspect many others and it cut down my snail problem by about 1/2 in 2 weeks. no. 10. Synodontis Decorus. Ameiurus. Upside Down Catfish False Cuckoo Catfish Available In-Store Only Browse online and buy in-store. With an average lifespan of 15 years, these fish require some commitment. swim 98% of the time upside down can get quite aggressive especially towards others of there own species sometimes they'll eat just about anything and yes they stay all. A Mekong netted in northern Thailand on May 1, 2005 weighed 650 pounds (293 kg), becoming the world record catfish. The Mekong Giant Catfish Pangasianodon gigas from Southeast Asia can reach up to 10. 9K subscribers in the whatsthisfish community. Scientific Name: Synodontis alberti; Common names: Alberti catfish, bigeye squeaker, Albert’s Synodontis; Minimum Tank Size: 30 gallon; Adult Size: 6-8 inches;A complete alphabetical listing of all the fish species in the world would have at least 30,000 items, and those are just the official saltwater and tropical fish names. I have only one upside down catfish in my 55gal (he was sold to me as a "small pleco" at Walmart when he was about . If I had a U2, I would opt for not attaching the venturi (always found them a nuisance on filters I've had) then setting the knob for top water flow. jpeg. The fish gets its name from the fact that it often swims upside down. This can be traced to the fact that they are easy. Tank Tank Size. #1.