What type of shark can be put in community tank?
First of all, the fish you see labelled as “sharks” in the pet store, aren’t sharks. There are no true freshwater sharks available to the pet trade. They are either cyprinids (same family as Goldfish) or catfish – just given the shark name due to their shape and as a key selling point. As to what’s suitable for your tank – what tank size? Ruby/Rainbow Sharks – need at least 35 US gallons, get around 5″-6″, bottom dwellers and are exceptionally territorial towards anything else similar shapes – would be ok with Mollies provided you didn’t want your fry and your tank was spacious with plenty of caves. Red Tailed Black Sharks – same as the Ruby Shark Silver Sharks – this usually refers to Bala Sharks who need at least a 6ft long tank, very skittish, to be kept in groups and get over 12″, would not be compatible with smaller Mollies. Iridescent Sharks – these are catfish, get around 3ft long, so clearly not suitable for the average home aquarium! Columbian Sharks – catfish which get around
