i've been watching the oddest thing for the last hour or so. tom & jerry, my two bimacs have been playing their version of leapfrog. tom, the bigger of the two zooms across the tank and jumps on jerry's head. the first time i saw this i thought he was going to eat him. but, then he hops off and sits a foot away. then, 5 minutes later, jerry did it to tom! this has happened about a dozen times until something startled them and they ran to their little holes to hide. has anybody seen this before? they're just babies so i assume this isn't any kind of mating behavior. it doesn't appear to be agression. do they play with each other this way? its really kinda funny to watch. i wish they were a bit bigger so i could capture it on camera for all of you.