How big of a tank is needed for a Black Fin Shark ( catfish )?
Common Name(s) Blackfin catfish, Colombian Shark Catfish, Shark Catfish, White Tip Shark Catfish
Alternative: Why not buy a synodontis catfish instead? There are dozens of species available which grow to a range of sizes, but the majority do not exceed 8 inches as adults. Many common varieties have striking features similar to high fin sharks – distinct bands, large dorsal fins and bold black/white/grey coloring. They are fairly hardy, though they prefer a slightly high pH and hard water.
The Shark Catfish resembles an actual shark in appearance and swimming movements. It has an underslung mouth with maxillary barbels and a pair of chin barbels. The dorsal fin is located close and is pointed, and there is a venom-producing gland on the first dorsal spine. It has a rather long anal fin with 26-46 rays. These fish can grow to 13.8" (35 cm) in length when kept in proper brackish conditions, and have a life span up to 15 years.As juveniles they are a silvery-grey color with white undersides and black pectoral, pelvic and anal fins. The common names incorporate some of the characteristics such as the white tips on its pectoral and anal fins as well as the black linings on its dorsal and tail fins. The adult coloration is a little duller but it is still a very striking fish.One of the most interesting behaviors is the sounds they make, which can be quite loud. They produce audible clicking or grinding sounds by rubbing their pectoral fins against the sockets. Although the reason they make sounds is unknown, it may be used as signals between fish to keep the school together in murky waters or as an echolocation system similar to dolphins. In murky habitats, this type of audio navigation works better than sight or lateral lines. These fish become more vocal if feeling threatened, which can be confusing when other fish kept in the same aquarium are make clicking sounds.
New Addition Black Fin Shark Catfish / Columbian Shark - YouTube
black tip fin catfish fresh water shark 120gal - YouTube
black fin shark from Wal-Mart 1/11/14 ok I just bought a black fin shark from Wal-Mart. it was the last one they had and I am a sucker for lone fish. the question I have is mine is doing unbelievably well. he has a good appetite and is very energetic. I have him in a tank with guppies, neon tetras and even Bettas 2 male and 3 female along with others and they all get along. I know black fins are brackish water fish and the fish I have it with aren’t but because it was suggested that even freshwater fish can benefit from a little salt in the tank I added some salt. maybe a small pinch of aquarium salt per a gallon. is this enough salt for a black fin or should it have more salt. I know the fish I already have did great with more salt content but I had to lean it out because of a bad red algae bloom that wouldn't die. finally killed it off but it made a mess of the tank. any help would be appreciated.
It's true that Black Fin Sharks (more often called Colombian Shark Catfish here in England) can do well in freshwater for a long time. Juveniles probably grow up in rivers before heading out to the estuaries where the adults live. In my experience, I've seen many specimens in freshwater up to 5-6 inches long doing perfectly well in freshwater tanks, even as singletons. So your results with this catfish are by no means unusual. However, there inevitably comes a point when the migratory instinct kicks in and you see these catfish anxious to swim into brackish water. Such catfish spend their time "treading water" at one end of the tank, usually near the filter, and look distinctly frustrated I suppose if they can't swim somewhere else. Furthermore, as these catfish age, they become more prone to disease when kept in freshwater, particularly things like fungal infections. Put another way, while your singleton probably isn't unhappy at the moment, in the long term you do need to accept that this is a very big (expect 12+ inches), very predatory catfish that will eat all your other fish anyway (anything smaller than, say, 3-4 inches), and will eventually need an aquarium tailored to its specific needs (75 gallons at least). Some folks keep them in their own brackish water aquarium, perhaps alongside some Monos, Scats, Archerfish or whatever, while others opt to keep them in a marine aquarium with colourful but hardy marine fish such as Damsels, Morays or Lionfish that aren't difficult to keep. Either way these are spectacular fish -- a school of adults is about as close to real Sharks in the home aquarium as most people will ever get -- and well worth a little extra effort. Hope this helps, Neale.> Description Juvenile specimens are silvery-grey with white bellies and black pectoral, pelvic and anal fins edged with white. The dorsal, adipose and tail fins are plain grey. As they mature their colours become a little more muted, but adult Colombian Shark Catfish are extremely imposing fish. They are big, muscular fish and very shark-like in their appearance and swimming movements.