GreenPlanet Nutrients 4-Part Hydro Fuel Bloom A & B

Part A focuses on nitrogen, calcium, and chelated micronutrients (iron, manganese, zinc) that support plant structure and metabolic function throughout the flowering stage. Part B delivers the high-phosphorus and potassium load needed to fuel flower and fruit development, which can be further boosted with PK Spike during mid-to-late flowering.

The split is intentional — keeping these nutrient groups separate prevents chemical incompatibilities that would otherwise cause precipitates or lockout in concentrated form.

Always add Part A to your reservoir at the desired rate and stir thoroughly before introducing Part B. Never combine concentrated A and B directly together before they have been diluted in water, as this can trigger nutrient reactions that reduce efficacy.

The recommended application rate for each part is 3–4 ml/L (11–15 ml/Gal).

Hydro Fuel Bloom is formulated exclusively for the flowering stage of growth. It is the bloom component of the 4-part Hydro Fuel system, which uses two separate formulas for the vegetative stage (Grow A & B) and two for flowering (Bloom A & B).

This clear grow/bloom separation gives growers more precise control over which nutrients their plants receive at each stage of the growth cycle.

A 4-part system gives growers significantly more control over their nutrient regimen by making a clear distinction between vegetative and bloom nutrition. This allows you to more easily integrate additives, adjust for strain-specific requirements, and fine-tune feed timing in ways that a single-part or 2-part base nutrient limits.

For craft cultivators who want to push plants to their genetic ceiling, the extra control the 4-part system provides is a meaningful advantage over simplified alternatives.

Yes — Hydro Fuel Bloom is part of the official GreenPlanet Hydro Fuel Feed Program, which is designed to work seamlessly with GreenPlanet's full range of supplements, such as the kelp-enriched Ocean Magic Kelp Additive and the growth-stimulating Vitathrive. The 4-part base format was specifically architected to accommodate additive integration without conflicting with your base nutrient ratios.

Always refer to GreenPlanet's official feed chart to ensure correct dosing when stacking multiple products.

Hydro Fuel Bloom A & B is available in 1 L, 4 L, 10 L, and 23 L sizes. The 1 L option is ideal for home growers or those trialing the system for the first time, while the 10 L and 23 L volumes suit commercial or high-volume production environments.

CFIA (Canadian Food Inspection Agency) exemption status indicates that the product meets the agency's standards and is not subject to the full registration requirements applied to other fertilizer products. This reflects GreenPlanet's use of quality-verified, compliant raw materials in the formulation.

It is not a performance claim, but it does signal a baseline commitment to ingredient quality and regulatory transparency.