B-X PRO
Base nutrient B. Fuller canopy, steady energy — phosphorus, potassium, magnesium, and sulfur complete the base so plants keep powering growth instead of stalling.
1 L bottle / Bright Lime
B-X PRO
Base nutrient B. Use in Vegetative.
Available
NZD $39.99
When to use
Use with A-X PRO as the paired base nutrient system.
Why it matters
Fuller canopy, steady energy — phosphorus, potassium, magnesium, and sulfur complete the base so plants keep powering growth instead of stalling.
How it works
Balances energy transfer, metabolism, and canopy expansion alongside A-X PRO.
Compatibility notes
Designed to run with A-X PRO. Compatible with MICRO-X and ROOT-X in vegetative feeds.
Mixing notes
Never combine concentrates directly. Dilute A-X PRO before adding B-X PRO.
Storage notes
Keep cap sealed and avoid contamination from measuring tools.
Shelf-life notes
Best used within 18 months of opening.
Formulation & guaranteed analysis
PGG Hort — revised formulation, 14 May 2026. Composition is per litre of concentrate — not a dose rate.
Composition (per litre)
- Potassium nitrate55 g
- Mono-potassium phosphate40 g
- Magnesium sulfate heptahydrate35 g
- Potassium sulfate12 g
- Waterto volume
Guaranteed analysis
- Total Nitrogen (N)~0.7%
- Available phosphate (P₂O₅)~0.9%
- Soluble potash (K₂O)~3.1%
- Magnesium (Mg)~0.35%
Label & feed chart
B-X PRO label & feed chart
See the approved product label and rear feed chart, download the product PDFs, or open stage-specific QR feed guidance.
Front label
Rear feed chart
Grow OS product render
Checking access
Loading subscription status.
What to watch for
- + Even canopy color
- + Stable pH after mixing
- + Salt buildup in dryback-heavy media
Signs of overuse
- + Runoff EC climbing
- + Leaf edge stress
- + Reduced uptake response
Signs of deficiency
- + Weak growth rate
- + Lower leaf fade
- + Reduced vigor
Planning dose range
Beginner, standard, and professional calculator defaults.
beginner
1.2-1.8 ml/L
standard
1.8-2.4 ml/L
professional
2.4-3 ml/L
Product tips
- + Match A-X PRO and B-X PRO ml/L for predictable base balance.
- + Log EC after pH correction.
Related protocols
Stages: Vegetative. Add B-X PRO to My Shelf to track usage, reorder timing, and low-stock warnings.
Grower reviews