I covered the sides and back of my tank completely in black silicone. That way it hides the false bottom and the great stuff foam from seeing it from the outside. For the front im going to cut the egg crate back about a half inch and put another piece of it going straight down. That way it will be able to hold back aquarium gravel that will be in between that and the glass. Kinda hard to explain lol. I'll try to take some pictures if I get a chance if you don't get what im sayin.