Capping dirted tank with Safe-T-Sorb?
Hello, new to planted tanks and redoing the substrate in my 72 gallon bow from huge gravel to dirt/STS. I was originally going to do 1'' dirt, 1'' STS, and 2'' of fine gravel, but I cant find affordable gravel anywhere. I was wondering if I could just cap it with STS? Im worried that it will be too light to use as a cap by itself, anyone have any experience with this, or know where I can find cheap, very fine gravel? Have checked every pool, landscape, nursery, construction store I can think of, to no avail.