Quote Originally Posted by BCollie View Post
Very helpful, thank you!!
So the river rocks should go on the very bottom of the tank, correct? They would be the bottom most layer out of everything? I can buy "River Pebbles"(Vigoro 0.5 cu. ft. River Pebbles-54250V at The Home Depot) from Home Depot for like 5 bucks for half a cubic foot. I would probably want around 1 cubic foot to make the layer 2-3" deep, am I correct? Or am I overestimating?

I will go look into weed block...sounds like something that would be cheap that I can find anywhere. That is the black stuff laid down under gravel to prevent weeds from growing, right?
The fiberglass window screen is better and cheap as well.

go to the Vivarium 101 contruction thread. Scroll down to post 6. there is a picture of a drainage layer.