Here's the deal... I was driving back from Michigan the other day and stopped at Cabela's to look at the fishes. Nothing revoltionary aside from noticing how all the bass are congregating under suspended tree stumps and other structure in the aquariums. This gets me thinking that maybe these tile are better for providing cover similar to a tree stump or a dock. If you cut them in half length wise and fasten back together you have a canopy of 48"...but its solid. Certainly the fish would like something like that, but if the fish are under this and its submerged can you even get to them. Or is that even a concern? Or should I just stick with the simple pyramid?