Originally Posted by dtejeda.arias
Mud it! Mix 1/4 soil and 3/4 black Eco/fluorite/sand or what ever you find! The. Cap it! Soil will produce sufficient nutrients for your plants and stabilize your tank! Personal opinion... Paint the back black and everything else pops out more! Nice looking scape.
What you mean 1/4 soil?? Soil from the ground?? Or the one for potting plants?