Ok, so my BTA will plant itself for a few days then opts to walk around the tank rock, and always managed to float away, fall off the rock and end up stuck to the HOB intake. I have managed to shield it some so that it does not cause near the damage the normal intake does and he cannot get sucked into it entirely, however how long is this going to continue before he opts to plant his butt somewhere and stay there? Is there anything I can do to help him want to stay some where? I am worried the getting sucked into the filters even with the added protection is going to hurt him.