my sea-grow 16 and 24 have lasted me forever.
I remember posting in this thread last year and i swear by this product.
I even got the hawaiian bud tub and flower hardener juice because i like to experiment....
but like sniper said, some 16-16-16, 4-24-24, grow more cal-mag solution, and a ph meter and soil is all you need.
i use this line for my plants and flower outdoors. i have some wildflowers and other roses around the yard and theyre just popping. i think im hogging all neighborhood butterflys and humming birds because theyre in my yard 24/7 LOL