alright i got 2 damsels in there so far and they have been in for about a week.....at first they were ok and didnt mind me watching them but now one of them dug all the rocks from under one of my LR and it goes under whenever anyone goes near the tank what is causing this?? is it scared or is it hiding something under there? like even if i move an inch and it sees me it will swim as fast as it can under the rock....