I think I seen it somewhere, but why wouldn't you want to use a sandbed deeper than 5 inches, say 8? Wouldn't be more like the ocean sandbed if it is deeper? Shouldn't a deeper sandbed have more area for those anoxic bacteria that eat
nitrates?
What I'm getting at is that we do our best to create reef conditions, right? So, wouldn't this include reaching a natural sandbed depth? Wouldn't this be the best thing to do?
By the way, how deep on average are sandbeds in the ocean?
