my serpaes are in a larger tank 90g mind you, but they only ever play tag with each other. fun to watch. but they have never gone after a different species in the tank. I have a school of serps and neons. but I know others have had issues with serpaes, but as Damon said seeing a huge school (30) of serp in a tank looks amazing. I had 30 in my 55 gallon at one point with 3 angles and it looked amazing. it was planted as well. but I had a ich breakout, and used malachite green to get rid, which id a tetra killer, so I lost a few then a few to old age. but man were they fun to watch, seeing 30 of them going side to side in a group playing tag. hmmm, maybe I'll do another 55g serpae tank with my extra 55g
