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THC Coco A&B | High-Concentrate 2-Part Coco Coir Nutrient Australia -
THC Silica | Potassium Silicate for Stronger Stems, Stress Resistance & Plant Structure -
THC Roid Flower Enhancer | High-PK Bloom Booster for Size, Density & Yield -
THC Cal-Mag | Calcium & Magnesium Supplement for LED Grows, Coco & RO Water -
THC Rhizo Shield | Root Zone Defence, Sterilisation & Plant Immune Support -
THC Reskue | Plant Recovery Formula for Chlorosis, Stress & Nutrient Lockout -
THC Eksit | Final-Stage Bloom Booster for Maximum Yield & Density
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THC Nutrients
THC Nutrients, Total Horticultural Concentrate, is a high-concentrate professional nutrient brand engineered for growers who demand maximum performance from every litre. The range covers base nutrients through to targeted additives for root health, flower density and recovery, all formulated at high concentrate ratios for cost efficiency and precision feeding.
For coco coir specifically, THC Coco A&B delivers a complete 2-part vegetative and flowering system built for coco's higher cation exchange demands. Support it with THC Cal-Mag for LED grows, coco or RO water where calcium and magnesium need topping up, and THC Silica for stronger stems and stress resistance from early in the cycle.
Heading into flower, THC Roid is a high-PK bloom booster for size and density, while THC Eksit is the final-stage finisher for maximum yield in the last weeks before harvest. If plants are showing chlorosis, stress or nutrient lockout, THC Reskue is built specifically for recovery, and THC Rhizo Shield defends the root zone and supports plant immune response through the full cycle.
Suitable for coco coir, rockwool, and recirculating hydroponic systems. Fast shipping across Australia.
Frequently Asked Questions
What makes THC Nutrients different from a standard-strength nutrient line?
THC formulas are ultra-concentrated, typically dosed at 2ml per litre rather than the higher volumes standard nutrients require, which means one bottle covers significantly more feeds.
Do I need THC Cal-Mag if I'm already running THC Coco A&B?
Coco A&B is formulated for coco's typical calcium demand, but growers on RO water, running LED lighting, or seeing early deficiency symptoms often add THC Cal-Mag on top for extra assurance.
When should I use THC Reskue instead of adjusting my base feed?
If a plant is showing chlorosis, lockout or general stress despite a correctly mixed feed, THC Reskue is designed for targeted recovery rather than adjusting your whole nutrient program.
Does THC Nutrients ship fast within Australia?
Yes. All products ship from our Australian warehouse with fast tracked delivery Australia-wide.