R
I don't think it's so much what you use, versus how much you use.
A 20 gallon bag full of OF oughta last a good long time. Whereas my 1 gallon bag last about a month.
ok i was thinking the 5 gallon bags. i do have some 15 gallon smart bags i could use. the first one i grew got hit with mold the second one im doing now but its showing some kind of def. or lockout. its in 3 gal ffof.
