I am going to buy the fish for my 75 gallon tonight. I plan to have 4 angels and 10 to 12 tetras (all same species), 4 blue rams and a few drarf plecos or BN catfish for algae eating. I know that serpaes, bucktooth, and maybe von rios can be nippy. Any others that I need to stay away from so they won't harrass my angels? I want to eliminate a problem before it comes up.