I would put the rocks against the back to allow for more defensable spots for the fish. Right now if they run to hide their attacker is able to follow without having to break off pursuit. The fish will be able to get in the smaller nooks between the rocks and glass. Another issue is the rock itself reef rock is sharp and when they are running or hiding they are probably cutting themselves on it. It's not a terrible thing to use reef rock I did it in one of my African tanks years ago too. Texas holey rock is better for them, smoother and bigger holes to hide in.
My recommendation is to move the rock back and maybe stack in a little more. I think you could probably feed a little more also. And agree with above may have to target feed that pleco after lights out.
My recommendation is to move the rock back and maybe stack in a little more. I think you could probably feed a little more also. And agree with above may have to target feed that pleco after lights out.

