Originally Posted by newbie_dave
Q. Do Bettas live ok in communal aquariums?
Usually depends on what kind of fish are being kept around them, what food is being used most of the time, and how strong the filtration system is. Bettas are best kept with fishes that are around their size (not too big not too small)who aren't nippy with fins and are peaceful. When bettas are introduced to communal aquariums they will eat just about anything that your other fishes eat which can sometimes cause them to become bloated if they over eat, for example over eating on fish flakes. So if you see your betta getting a bit too fat take it out or else it can get swim bladder problems, otherwise reduce the amount of food being used in that aquarium. Filtration may be important for bettas but it's best to find filters that won't cause too strong of a current, bettas don't like the strong currents especially for the ones with long fins such as halfmoons, deltas, doubletails, and veiltails. Small sponge filters work great for this. So as long as they are kept with peaceful fish around their size, not being over fed, and kept in a calm or slow moving water environment then they should be fine. Hope that answered your question and feel free to ask more whenever you need