So, not really about how I want to place the rocks but a more interesting problem. I have a Potters Wrasse, beautiful fish and such a character. Problem is he sleeps or hides during stress under a very thick (6cm) sand bed. Now I was thinking of during my rescaping taking out ALL the rock so I can zap the apistasia, catch that bloody clicking pistol (I hate that thing) and check out my filter feeding green crab Then I thought, I am sure he will go hide in the sand, what if I put all the rock back and its ontop of him.... can he burrow his way out of it? Catching him - well good luck he is k@k fast and dives into the sand and you can't find him. What do you guys suggest?