The tank I am working on currently is intended to house a nice size group of Pygmy Corys. I am aware that the larger Corys will flatten out any slope that I build but am unsure about the Pygmys. I intend to plant heavily in ADA aquasoil. As far as design goes, I intend to use stones to terrace the soil. Planning a large sandy area up front for them. I assume I should allow the plants to get a foothold before introducing the fish so as to help prevent erosion. Am I overlooking anything? Any advice is welcome.