Green Planet GP3 Micro (1L / 5L)

What is Green Planet GP3 Micro and what does it do?

Green Planet GP3 Micro is the micronutrient and calcium component of the GP3 3-part nutrient system. It delivers essential trace elements—like chelated iron, boron, and others—supporting strong growth, nutrient uptake, and overall plant health from veg through bloom.

Is Green Planet GP3 Micro used on its own?

No. GP3 Micro is designed to be used with GP3 Grow and GP3 Bloom for a complete base feed program. Using it alone will leave out key macronutrients.

When should I use Green Planet GP3 Micro?

GP3 Micro is used throughout the plant’s life—from seedlings and clones (at low strength) through full veg and flower. Most growers run it every feed while adjusting Grow and Bloom ratios based on stage.

Can I use Green Planet GP3 Micro in hydroponics, coco, or soil?

Yes. It works in all media types, including hydroponics (DWC, NFT, etc.), coco coir, and soil. Just adjust feeding strength—soil typically needs lighter feeding than hydro or coco.

What’s the correct way to mix GP3 nutrients?

Always mix GP3 Micro into water first, followed by Grow, then Bloom. Never mix concentrates together undiluted—this causes nutrient lockout. If using additives like silica or Cal-Mag, add them first or dilute separately.

How much GP3 Micro should I use, and does it affect EC or pH?

Follow the GP3 feed chart and multiply the mL/L rate by your tank size. GP3 Micro contributes to EC and may shift pH, so always mix fully before checking and adjusting pH last. Ideal pH range is high 5s to mid 6s in hydro/coco.

Can I use GP3 Micro in automated or recirculating systems?

Yes—GP3 Micro is compatible with automated dosing and recirculating systems. Just ensure concentrates never mix directly and keep EC, pH, and reservoir temps stable to avoid issues.

What does overfeeding or underfeeding GP3 Micro look like?

Overfeeding may cause tip burn, dark leaves, or slow uptake. Underfeeding can lead to pale growth or deficiency symptoms. Yellowing may improve if it's caused by micronutrient imbalance, but check pH and root health too.

Is Green Planet GP3 Micro safe for edible plants?

Yes, it's a standard mineral nutrient used for food crops. Just avoid overfeeding, flush properly, and follow good growing practices to ensure clean harvests.

Will Green Planet GP3 Micro improve yield or quality?

Indirectly, yes. It supports nutrient absorption and prevents issues that can reduce yield or quality. But end results also depend on light, environment, and overall grow management.

Does Green Planet GP3 Micro need special handling or storage?

Shake before use, store sealed and upright in a cool, dry place out of direct sunlight. Avoid freezing or overheating. Like most nutrients, it can stain—clean spills quickly.