130 Gallon High Tech Under Construction
Kinda a newb question on this one but the 130g im building is my first serious aquasoil planted tank....How deep should the substrate be for stems and deeper rooted plants as a general rule of thumb? I plan to have a pretty built up elevation twords the back of the tank and had been looking at using lava rock to save some money. I had thought about building up part way with lava rock and then adding an inch or there about of ADA power sand on top of the lava rock and then maybe 3-4" of clay based aquasoil type substrate (ADA, Contrasoil, Tropica sorts of soil). This would prevent having to buy enough aquasoil to make up 12-18" or so of depth.....is that 3-4" of soil with 1" of power sand before the lava rocks deep enough or should I go deeper?