Out of curiousity I did a search on this horticultural charcoal and happened onto Paghat's website. I was a little surprised to find that horticultural charcoal has absolutely none of the properties I thought it had. I was going to put a layer on the bottom of the tank, covered with a layer of weed fabric, then some pea gravel mixed with sand, covered that with more fabric, then on top of that the promix. I want to grow a number of things, all needing similar conditions, low light, and dwarf. In one area I'm putting in a little zen area with raked sand and some miniatures, etc.
So, is it my understanding I can eliminate the charcoal? Do you have any recommendations regarding what mix ratio, etc? One last, can I assume if only one fluorescent tube full spectrum 4' light would be considered a low light situation if the tube is more than 24 inches above plants. Is this a correct assumption?
Anyone with experience or knowledge is welcomed to give some advice. I somehow think Paghat knows more than most people on the Internet...or it looks to be so.
Victoria