So I have a niger triggerfish, an unidentified wrasse, a blue damsel, and a decorator crab in my 29 gallon tank. My triggerfish always stayed in a little cave which was a smaller LR
on top of a large LR
, but I came home and the little LR
(top of his cave) is now on the sand bed. I'm guessing the triggerfish moved it. Should I leave it on the sand bed or put it back for his cave?