I have a new baby vft, and I'm looking to transplant it out of the very small container it came in. I stumbled across this board, and I've seen a variety of posts regarding soil composition. I have a package of cactus potting soil, which says it contains a blend of "composted material, perlite and sand". Would this mixed with sphagmum moss be a satisfactory planting medium? I'm looking to keep things pretty low tech.