I could not afford any of the solulables at the time but maybe soon. what would be the bes to get if I only could afford one? there is something I do not understand on ff's feeding schedule, when It say's to use 2 tbs per gallon does it mean to use that ratio per week or to use the 2 tbs per gallon ratio every time you water with nutes. I know to use nutes only everyother water. I am not sure if I am explaining this right. I believe I read that rustytri- uses 1/2 the amount per gallon twice a week. I am confused???