Does anyone have a list of freshwater fish with which level they dwell in? I would like to restock my tank because my 40 gallon tank is looking pretty bare. I would like to add more neon tetras and a couple Angel Fish if that helps. Thanks!
Rainbow sharks and Serpae tetras are "nippy" fish. Serpaes, if kept in a large group (6 or more) mostly keep to themselves. Rainbow sharks should be kept solo and will interact with all tank mates in some way. Fish with long fins will prove too tempting and so isn't a good idea to mix with either of these fish.
DO NOT PUT NEONS IN WITH ANGELS!!! The angels will eat all of the tetras. I know this from personal experience. I would suggest angels, danios, and a red tailed black shark, or a mixing of tetra species.