I decided to make a foam rock wall for the back of the tank. I had seen a lot of people using foam to create fake coral around the over flow, decided to give it a try. Got the light diffusers from HD and painted with Fusion black paint.
Picked up some black foam from Lowes…I ended up using about 3 cans. And dumped some rock salt to create a more rough surface.
Next using West epoxy from Lee Valley I covered the pieces with sand.
I wanted to angle the pieces slightly, so I shaved all the edges to get a nice angle against the back wall.
Once everything was in place using GE silicone I then filled the edges with foam. The extra foam pieces came in handy for keeping them in place.
Starting to clean up the edges.
Final product
