My fabric pots are 11" high.The medium is living soil,10% worm castings, 444 & some perlite. I don't think I filled the pots enough. 2 of the pots are 4" below the top 2 are "3" below the top. The plants are autoflowers 4.5vweeks old. I have some hp50 & coco & perlite left over that I could fill them with. Should I be leaving them alone taking them out of the pots and filling the bottom, or filling the top ? Which mediam or combo should I use ?