gfishguy56
Aquarium Advice Activist
Using some form of foam insulation to make the back part of your tank look like a cave? I went to my LFS and I saw a display(no water in it yet) where they used foam insulation and painted it, and stuck rocks in it to make it look like a natural setting. If this is at all possible and someone can tell me what type of foam insulation would be safe for saltwater fish tanks, I have me an empty 20 gallon tank I'd like to experiment on. I hope I explained that right.
