okk i got a 55 long, i just got one indo datnoid about 2-3 in on last week friday (4/22/11) and i puuted him in with one red devil, one jag and a convict (ok i know thats not a good mix but just listen) my convict was chasing my datnoid so i took him out, and every thing went well after, no cichlids was bothering my dat.today (4/26/11) i got 2 new datnoids (2-3 in) from the same person and right when i putted them in my datnoid attacked him as well as my red devil. right now my datnoid is chasing the 2 new danoids. my red devil doesn't pick on them alot. but my datnoid is chasing them around. what can i do to stop this or just leave them is this how they really are? when i had my datnoid with the RD and JAG i feed them feeders did this make him aggressive? help please!