I knew it would happen!! My little hippo was pushed around (some) by the yellow tail damsel. Welll, the hippo is now biggger, and rubbing the damsel's nose in the sand!! I almost feel bad for the damsel...almost.
Our y.t.d. often messed with our then newly added lawnmower blenny. "Lenny the blenny" quickly lost it's cool and would chase the y.t. around the tank. I loved it! The y.t. eventually learned not to mess with "Lenny".