OK here is the situation. I have had 2 jewels in a 55 gallon with 3 other assorted cichlids for around 6 months with no problems. Until about a month ago the Jewels went nuts and killed the others. I know they are supposed to be agressive but I thought mine were ok. They even spawned once and never acted that bad as they do now. So now I put a Red Terror in there thinking they won't bully him around. He is the same size as them right now maybe 3''. I don't want them to fight but maybe the Red Terror would give them a little attitude adjustment. What do you guys think.