The sand I used to cap was Tahitian Moon Sand. It's very fine so it got blown away very easily exposing the MTS.
Should I mix the TMS and MTS then cap it? Or should I try to remove all of the TMS and then try to cap just the MTS with Flourite black sand?
Could I add some leonardite (black diamond) on the bottom of everything sprinkled with mulm? I want to gain as much info as I can before I do anything.