i just introduced a convict cichlid thats about an inch long to my tank. at first he seemed to constantly attack my 5 tiger barbs that are all slightly bigger but now hes been in there a couple days and it appears hes schooling with the tiger barbs and they all seem to get along great. from what ive heard this is very odd. is the lack of aggresion someting to be worried about? has anyone else experienced this?