I've used GH flora series for some time and had great results, not too expensive,( when ordering the three, gro, bloom, micro) I've since changed to GH maxy grow and bloom, unfortunately tho the flora series is inexpensive, once one qt was used up it turned out to be too expensive to order just one qt, say I'd run out of bloom or whatever, i'ts the shipping that kills you, so I'm trying the maxy gro and bloom, should be just as good 'cause I have good faith in GH, I think they have great products, it's a powder and I'm sure desolving may be somewhat of a chalange.