New guy here. Took a look around and was blown away by all the great resources and thought I'd throw in my two cents here on constructing backgrounds. I just completed a background for my 125 gallon tank. It's constructed out of polystyrene board, cement, paint, and marine epoxy.
Here's a picture of the complete thing. The water is a little foggy in the picture cause I took it shortly after putting the critters back in.
It definitely needs some plant life but I'm working at it. My next project is to make a real canopy to increase the amount of light. Any good DIY
light canopies out there you guys can suggest?