is it normal that my 3 figure eights ( buddah, ruchi-vo and tavii) get along??? they each have their own territories, but can often be found hanging out on "mutual ground" hunting for snails or ghost shrimp side by side, and tag teaming the bigger shrimps..they are in a 15 gallon tank, i plan on getting them a 20 long sometime around christmas to give them bigger territories..everyone is fat, shiny, fantailed and full of pretty copper and gold stripes and spots..no one paces the side of the tank either,, except at feeding time..