Quote Originally Posted by stinkyattic
Ferts- Can be pricy, up to $50 a quart, no kidding.
Yeah, but don't let stinky scare you. You can make it real simple if you want to. When I first started hydro I had a quart of veg nutes and a quart of bud nutes. Each cost about $15, and I had incredible results. Now I am slightly more sophisticated, but I still swear by those nutes. I suggest Fox Farm's Grow Big for veg and Tiger Bloom for budding. Also, A little goes a long way, like a few teaspoons per gallon for your 20 plants, every other week. Also if you buy in gallons it costs even less. Those $50 per quart nutes are the Mercedes Benz of nutes.

Like socialistpete says I think you are being slightly ambitious for a first timer. How many peple do you plan on selling to, for crying outloud? I highly reccomend a 2-4 plant grow in a closet at first to get a feel for it. I think you will be grateful to yourself beyond belief if you do so. You may even invite yourself up for a drink.