are root tabs necessary?
So I'm trying to grow some amazon sword and jungle val in nothing but inert fish gravel. I know they are root feeders, and my dirted tank grows them faster than I can manage some times.
I was going to put a root tab a few inches under the sub but then I thought for a moment... this gravel is your typical gravel. It's not tight packed like sand, so putting a tab under 2 inches of gravel... wouldn't it just work it's way out into the water column? Or better yet, couldn't I just dose the water column and said dose would find it's way (with time) under the 2 inches of gravel and nourish the roots anyway? Thoughts? Experiences?