Due to some fish I had ordered being way too small, I had to temporally house my bichir in my community tank (210g). It includes a Pearsei, Red Bay Snook, Red Isletas, hoplo cat, rhino pleco. I know the bichir and pleco thing is generally a no go but only issue is when the bichir come near the plecos log. Otherwise they are well fed and get along. I plan on moving my bichirs out as I can get my little growouts big enough to move or not be eaten. But the bigger the tank the easier it seems to be. When my bichir were in my 72g bowfront with the red isletas he had it out for one of them and would just follow it around in a threatening manner all the time. Same fish in the 210 gallon he does not look at or bother at all.