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The Hydro Nutrients Powder A + B + C range is a high-performance, fully soluble dry nutrient system designed for growers who want maximum control, clean mixing, and consistent results across hydro, coco, and soil.
This three-part program delivers a complete nutrient profile from early vegetative growth through to late flowering, allowing growers to fine-tune key inputs as plant demand changes through the cycle. Powder A provides a stable nitrogen and calcium foundation for strong structure and rapid growth. Powder B supplies essential phosphorus, potassium, magnesium, and sulfur to support root development, plant metabolism, and full-cycle performance. Powder C is a concentrated PK-driven flowering supplement designed to push mid-to-late flower development, improving finish quality, density, and yield potential.
Because each component is separated, the system offers precision control over nitrogen and PK levels, making it easy to taper or increase specific elements as the crop transitions through flower. The result is a flexible, commercial-grade feeding solution that dissolves clean, runs reliably through fertigation systems, and supports high-quality harvest outcomes.
Powder A is a core component of a complete feeding program, formulated to supply plants with a clean and highly available source of nitrogen and calcium. These two elements are critical during vegetative growth, where plants require strong chlorophyll production, rapid leaf development, and solid structural formation.
Nitrogen drives healthy green growth and plant energy production, while calcium supports cell wall strength, internal transport processes, and overall resilience. A consistent calcium supply also helps prevent common growth issues linked to poor structural development and uneven nutrient movement.
Powder A is intentionally kept as a standalone part of the system, allowing growers to control nitrogen input with accuracy as the crop moves through flower. As flowering progresses and nitrogen demand naturally reduces, growers can taper Powder A without disrupting the overall feed balance. This makes it easier to avoid excess nitrogen late in flower, which can lead to unwanted leafy growth and reduced flower quality.
Reducing nitrogen in the later flowering stages can also support improved finish characteristics, including tighter flower structure and enhanced aromatic compound expression.
Powder B is formulated to provide a stable, highly soluble supply of key bloom-supporting elements including phosphorus, potassium, magnesium, and sulfur. Together, these nutrients support strong root function, improved nutrient movement, and the development of productive flowering sites.
Phosphorus plays an essential role in plant energy processes and is particularly important during early establishment and the transition into flowering. Potassium supports internal regulation, including water balance, carbohydrate movement, and overall metabolic efficiency, helping plants perform consistently under changing conditions. Magnesium is included to maintain chlorophyll function and maximise photosynthetic output, while sulfur supports the formation of aromatic compounds and oil-based metabolites that contribute to improved finish quality.
Powder B is designed for continuous use through both vegetative and flowering stages, making it a dependable “backbone” component of the Powder A + B + C system. It integrates smoothly with the full program, allowing growers to adjust nitrogen and late-stage inputs without compromising overall balance.
Powder C is a concentrated PK-driven flowering additive formulated to support heavy bloom development, improved finish quality, and increased yield potential. With elevated phosphorus and potassium levels, Powder C helps drive key processes during peak flowering, including energy production, cellular expansion, and the development of dense, high-quality floral mass.
This formulation also includes magnesium to help maintain chlorophyll function and keep photosynthetic performance strong as plants enter higher-demand flowering stages. Sulfur is included to support secondary metabolite production, contributing to stronger aromatic expression and improved overall sensory characteristics at harvest.
Powder C is designed for growers who want greater control during mid-to-late flower. By adjusting Powder C rates as flowering progresses, PK levels can be increased to match crop demand, allowing plants to finish harder without compromising solution cleanliness or system reliability.

Compatibility
✔ Hydroponic systems
✔ Coco coir
✔ Soil and soilless media
Storage & Safety
Store in a cool, dry place out of direct sunlight.
Keep out of reach of children.
Avoid contact with eyes and skin.
DIRECTIONS
GROW: 1.0g per 1L water
FLOWER:
Weeks 1–6: 1.0g per 1L
USE A&B TO GROW/VEGETATIVE
USE A,B&C FOR FLOWER STAGE
DIRECTIONS
GROW: 1.0g per 1L water
FLOWER:
Weeks 1–3: 1.0g per 1L
Weeks 4–8: 0.75g per 1L
USE A&B TO GROW/VEGETATIVE
USE A,B&C FOR FLOWER STAGE
DIRECTIONS
FLOWER:
Weeks 1–3: 0.25g per 1L
Weeks 4–8: 0.5g per 1L
USE A&B TO GROW/VEGETATIVE
USE A,B&C FOR FLOWER STAGE
GUARANTEED ANALYSIS
POWDER A
Nitrogen........15%
Calcium........18.5%
Boron........ 0.02%
Derived from:
Nitrogen
Calcium
Boron
GUARANTEED ANALYSIS
Phosphorous................7%
Potassium...................25%
Magnesium..............4.65%
Sulphur.....................13.5%
Iron EDTA..................0.6%
Trace Minerals
Derived from:
Mono Potassium Phosphate
Potassium Sulphate
Magnesium sulphate
Iron EDTA
Copper EDTA
Zinc EDTA
Manganese EDTA
Sodium Borate
GUARANTEED ANALYSIS
Phosphorous...............30%
Potassium...................30%
Magnesium...................3%
Sulphur......................7.4%
Iron EDTA.................0.6%
Trace Minerals
Derived from:
Mono Potassium Phosphate
Potassium Sulphate
Magnesium sulphate
Iron EDTA
Copper EDTA
Zinc EDTA
Manganese EDTA
Sodium Borate
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