I must agree, I've been reading so many differnt things about mould and gnats. Mostly this late either cut the parts with mould out and clean best as possible. As for the gnats, I have gotten them under control with sand box sand. Smuther then out, the adults can't reach the soil to lay more eggs. But, the larva is already eating the roots. I forget the life cycle but they are doing serious harm. Leafs are curling, turning black at tips. Leafs falling off left and right. It's sad, but your right. Time to chop her down. Between all the problems and the issues. The growth will be stunted and that's one set back to many. R.I.P ( rest in pieces ) any ideas for a safe site for seeds, that you have expirence with. Thanks for everything guys, sucks though..