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One-Part and Three-Part Nutrient Systems

8 one-part and three-part hydroponic nutrient systems, an alternative to standard two-part A and B feeding. Includes Terra Aquatica TriPart and NovaMax, GT Iconic Grow and Bloom, and Uber Nutrients Uni-One.

Frequently Asked Questions

Do one-part nutrients need a separate Cal-Mag supplement?
GT Iconic and similar one-part formulas already include calcium and magnesium in the single bottle, so a separate Cal-Mag supplement is not usually needed unless you are growing in coco or have hard tap water.

Can I use TriPart Micro on its own without Grow or Bloom?
No, Micro alone lacks the nitrogen, phosphorus and potassium that Grow and Bloom provide. All three parts work together across the ratios that shift through the grow cycle, Micro is not a standalone base feed.

Can I switch from a one-part system to a three part system mid grow?
You can, though it is cleaner to make the change at a natural transition point, such as moving from vegetative growth into flower, rather than switching mid-stage.