Grotek Insta-Green, 1 L Hydroponics This coarse (SGN 220-230) general

This coarse (SGN 220-230) general use fertilizer is derived from feather meal

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Grotek Insta-Green, 1 L Hydroponics This coarse (SGN 220-230) generalGrotek Insta Green, 1 L Product Details Insta Green is a dark greening solution, scientifically formulated to bring plants back to a lush, dark color and vigor. Insta Green will eliminate yellow leaves in seedlings and cuttings. Use Insta Green when plants are stressed due to underfeeding or transplanting until vigor has returned. Best used as a foliar spray in both indoor and outdoor applications.