IF you can find it in your area, two great products for soil amendment are: Kellogg's 'Amend' Soil Amendment, and Fox Farms 'Happy Frog Soil Conditioner' ... the Happy Frog Conditioner is outstanding stuff ... full of mychorreazea (I cant spell that right for the life of me) and humic acid, it is a texture and material that really 'opens' up your soil, providing great drainage, etc ... the 'Amend' is made from rice hulls and sludge (sounds appetizing :wtf, but it really grows plants !, is a texture more like potting soil ... good luck with your grow :thumbsup: