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Greenhouse suppliers have ready made mixes for hydroponics. They should have all the stuff listed on a bag of Peters fertilizer. If it doesn't have all of that--something's missing. Look in the yellow pages for Greenhouse Supplier or go to an area greenhouse and see where they get their supplies. Most suppliers sell retail too. How much pot you growing?

2006-09-29 10:06:18 · answer #1 · answered by college kid 6 · 0 0

Nitrogen, potassium and potash.

2006-09-29 08:33:55 · answer #2 · answered by Anonymous · 0 0

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