I just moved my oldest and most dominate bitaeniata from my 8 gallon tank to my 16 gallon tank. It will be interesting to see how such a dominant fish will do with some very boisterous cichlids. also i wonder who will become dominant in the 8 gallon tank. The Apistogramma resticulosa and the pertense are pretty similar in size and dominance.Speaking of dominance my favorite apisto is acting quite the terrtorial Apisto. he just flared up at a fish thrice his size, and didnt back down! Certainly an exceptional fish and my most colorful Apistogramma.