That is true I didn't think about that. Guess I just don't notice it as much with a longer tank. Sailfin is quite a bit mellower... It comes right up to me when I'm feeding. The sailfin and my bat will eat out of my fingers when I feed them... Oh man!!! This is hard to get rid of them!! I got my batfish when it was only about an 1 1/2 inches and now it's pushing 10" or better!!