I'm setting up a new 110g (60x20x21) Mbuna tank. I've got a wet/dry with a 1200 gph pump and 2 hydor 600 gph power heads. I've bought some really nice decoration rocks from Universal Rocks to aqua scape and make the tank look as real to the natural environment as possible. I am painting the back glass flat black and considering attaching several of the rocks to the back glass to create a 3D background. The manufacturer suggested using silicone to attach an L-shaped piece of plastic to the glass, then silicone the inside edge of the rock to the plastic. This hangs the rock in place to give a 3D background look. They also gave the alternative of using a stainless steel screw to attach the rock to the plastic. Here are a few of my concerns and I would be grateful for any feedback.
1). If the edge of the rock is not completely flat to the glass, can water become somewhat stagnant behind the rock and create any problems? Would there be enough water flow with the filtration and power heads to mitigate this? I figure if fish get behind the rocks, they could get out.
2). I've never siliconed anything to an aquarium. If I decide to remove the rock from the glass and redo the look, how difficult would that be?
Attached are a few pictures of the rocks inside the empty aquarium and what the inside of the rock looks like. Again, I appreciate any feedback.
1). If the edge of the rock is not completely flat to the glass, can water become somewhat stagnant behind the rock and create any problems? Would there be enough water flow with the filtration and power heads to mitigate this? I figure if fish get behind the rocks, they could get out.
2). I've never siliconed anything to an aquarium. If I decide to remove the rock from the glass and redo the look, how difficult would that be?
Attached are a few pictures of the rocks inside the empty aquarium and what the inside of the rock looks like. Again, I appreciate any feedback.