i only feed when i need 2 feed 2/3 days soil i got from grow shop not sure of name im feeding them 14 @ mo i reaal do not understand done a grow before this one done nothing diferrent and got all this .just been and seen if got any bugs but nothing that i can see under my m glass .it come like little spots then just spreeds over the leaf in just a day the whole life as got it yet other leafs on same plant are fine.