I have 4 cichlids in a 90 gallon tank with plenty of space and caves/hide holes. 3 of them get along and one is a total jerk. He is picking on one that is injured (I bought him that way) and I noticed a piece of fin missing on my albino oscar. I am not sure what else to do. I keep catching g him and putting him in "time out" but as soon as he goes back he does the same. Darn. Thing. I cant let him hurt my other fish so now it's to the point that I have to leave him in the net if I'm not watching them. I've been reading so much since I started the aquarium and other than this problem, everything is been great. I'm currently treating my tank with microbe-lift for the injured fish and I do not really want to set up a separate tank for this little turd because I'm hoping someone can give me some advice that will rectify my problem. The 2 healthy fish are Oscar's and are best friends. They defended the sick one against the mean one before I started giving him time outs. I need to figure out a way to knock him down a few notches so the other fish can get him to submit. I wish they made fishy harnesses so I could put him on a leash and restrict his tank access without having to put in a divider and take space away from the other 3. I thought Oscar's were more aggressive but the convict is giving my Oscar's hell. I have 2 Oscar's, one albino, named Bonnie and Clyde and 2 convicts, named Scarface and I cant even say what the mean ones name is lol.
Last edited by a moderator: