Well my fish are named Psycho, Sucker, and Harry Potter (I wonder who named that one? My daughter)

Psycho(don't know what kind of fish it is)tries to chase Sucker(Sucker fish)and the Sucker fish if any of you know can kill many fish just by the fish getting to close it. On his body I guess you can call them spikes can poke another fish or sea critter if he gets angry enough. Well any who, Psycho loves to push Suckers buttons while he is doing his little Algae eatting feeding And it's kind of fun to watch because Psycho eggs him on and nips at his tale then they chase around a bit and Sucker goes right back to his job. I don't think they would ever hurt each other they have been this way since we have had them for over 5 years miracle huh.
Poor little Harry is sitting in a bowl by his lonesome I feel bad It's hard because you can't put any other fish with a betta because they will eat them as a snack.

Does anyone know what I can put in the bowl to make it so he is not so lonely anymore? We've had Harry for 4 years now. What a lonely fishy

The other 2 have a huge tank to play and Sucker all he really does is Suck algae and maybe a few times a day be egged by Psycho and chase.

Poor Harry