I have a spotted african leaf fish that I've had for about 6 years now. About 3 months ago I moved him from a 30 gallon to a 55 gallon tank. I'm wondering if I could put a rainbow shark in with him? or would it bother him too much cause he's a pretty laid back fish who likes to spend his days in his plant. There is a common pleco in there who I now understand was a bad choice in pleco because I need to find him a new home. He's just too big. So to summerize (cause I ramble too much), I have a spotted african leaf fish and a large pleco (who will be leaving soon). Will a rainbow shark be too active or otherwise incompatible with my leaf fish in a 55 gallon tank? If not are there any other fish I could look into? I don't want a lot of fish, I just want the tank to not look so empty.