so I picked up 4 dats sight unseen for my 125. when i got them i realized they were too small for the fish in my 125 so I am growing them out in my 50 gallon (they are 2-3 inches)...they are in there with a baby whale and an elephant nose fish. No aggression so far but they did go pretty unstable after being in there for a day. they are eating well but hide most of the time. anybody else keep dats with these kind of fish? any foreseeable problems for me?