I just purchased a bamboo cat shark for my 400 gallon tank. I have been trying to find good examples but does anyone have any advice on aquascaping for a shark. My current aquascaping is posted but I am just concerned with when he gets larger he may not have enough room to circle around my rocks. He is currently 10”. Should I move them to the back wall and make larger caves on the bottom or should I lay them flat. Thanks in advance!