CYCO Grow B 205 Liter

Two-Part Vegetative Nutrient, Part B, for Growth-Stage Feeding, 205 Liter

Vegetative growth needs a fuller nutrient spread than a single-bottle formula can carry in solution without precipitating, which is why CYCO splits its vegetative formula into two complementary parts. CYCO Platinum Series Grow Part B is a 2-2-6 formula supplying phosphorus, potassium, and magnesium and is used together with Grow Part A to cover the full range of primary, secondary, and micronutrients a plant needs through vegetative growth.

This 205 liter drum suits commercial operations dosing Grow Part B at production scale rather than restocking smaller retail bottles.

Key Features & Benefits

• 2-2-6 guaranteed analysis with Mg 0.7% — supplies nitrogen, phosphorus, potassium, and magnesium as half of the two-part vegetative system.
• Used together with Grow Part A — the two parts are mixed separately into the reservoir at equal rates rather than combined before dosing.
• Timed for the vegetative stage — dosed while plants are building stems and leaves, ahead of the switch to flowering.
• Mixes at 30ml per 10 liters of water — Part A is measured in at the same rate, then pH is checked and adjusted to 5.5-5.8 once both parts are dissolved.

Who Should Use Grow Part B

This fits growers running the CYCO Platinum Series vegetative-stage program who need both Part A and Part B to cover the full nutrient spread through vegetative growth. Used alone it covers only half the vegetative-stage nutrient spread, so it isn't a complete fertilizer.

About CYCO Platinum Series Grow Part B

CYCO Platinum Series Grow Part B is a 2-2-6 formula supplying phosphorus, potassium, and magnesium as one half of CYCO's two-part vegetative-stage nutrient system, used together with Grow Part A.

Frequently Asked Questions

What does Grow Part B supply?

It's a 2-2-6 formula supplying nitrogen, phosphorus, potassium, and magnesium as one half of CYCO's two-part vegetative system. Grow Part A supplies the complementary nitrate nitrogen and calcium half, so both parts are needed to cover the full nutrient spread.

Do I need Grow Part A as well?

Yes — Grow Part B is built to run alongside Grow Part A as a matched vegetative-stage pair, not as a standalone fertilizer. Dose both into the reservoir in the same feeding.

How do I mix Grow Part B into my reservoir?

CYCO calls for 30ml of Grow Part B per 10 liters of water, paired with an equal 30ml dose of Grow Part A in the same reservoir. Adjust pH to 5.5-5.8 once both are fully dissolved.

What point in the cycle should I switch away from Grow Part B?

Run Grow Part B through vegetative growth while plants build stems and leaves, then switch to the Bloom system once flowering begins. It is not used during the flowering stage.

What role does magnesium play in Grow Part B?

Magnesium activates numerous plant enzymes involved in vegetative growth, which is why CYCO includes it alongside the phosphorus and potassium in Part B rather than leaving it out of the two-part system. Grow Part A carries the nitrate nitrogen and calcium instead, so the two bottles divide the full micronutrient load between them.