Boosters & Additives
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Bio Diesel Crystal Clear Coco and Peat Flush Solution
Regular price From $15 AUDRegular priceSale price From $15 AUD -
Growth Technology Liquid Cal-Mag Nitrogen | Hydroponic Supplement
Regular price From $12 AUDRegular priceSale price From $12 AUD -
HY-GEN Nitro-K | 500ml, 1L, 5L, 20L | Organic Nitrogen & Potassium Booster
Regular price From $20 AUDRegular priceSale price From $20 AUD -
HY-GEN PK Top Up | 500ml, 1L, 5L, 20L | Phosphorus and Potassium Flowering Booster
Regular price From $20 AUDRegular priceSale price From $20 AUD -
HY-GEN Humiboosta | 500ml, 1L, 5L & 20L | Humic & Fulvic Acid Booster for All Grow Stages
Regular price From $20 AUDRegular priceSale price From $20 AUD -
Bio Diesel Pathway 40% Mono Silicic Acid | 100ml, 250ml, 500ml, 1L
Regular price From $50 AUDRegular priceSale price From $50 AUD -
House & Garden Roots Excelurator Silver | Flagship Root Stimulator for Hydro, Coco and Soil
Regular price $260 AUDRegular priceSale price $260 AUD -
Green Planet - Rezin
Regular price From $65 AUDRegular priceSale price From $65 AUD -
Green Planet Root Builder
Regular price From $45 AUDRegular priceSale price From $45 AUD -
Green Planet Ocean Magic
Regular price From $25 AUDRegular priceSale price From $25 AUD -
Xtreme Gardening Cal-Carb Foliar | 90g / 180g | Calcium CO2 Foliar Spray
Regular price From $50 AUDRegular priceSale price From $50 AUD -
Xtreme Gardening Mykos | 100g to 22.7kg | Pure Mycorrhizal Inoculant for Bigger Roots
Regular price From $12 AUDRegular priceSale price From $12 AUD -
Xtreme Gardening Mykos WP | 340g to 22.7kg | Wettable Powder Mycorrhizal Inoculant
Regular price From $70 AUDRegular priceSale price From $70 AUD -
Xtreme Gardening Azos | 56g to 340g | Faster Root Growth
Regular price From $50 AUDRegular priceSale price From $50 AUD -
Med-Tek Rhizo Plus | 1L, 5L, 20L | Kelp Based Root Stimulant
Regular price From $65 AUDRegular priceSale price From $65 AUD -
Med-Tek Resin Finish | 1L, 5L, 20L | Flowering Additive
Regular price From $35 AUDRegular priceSale price From $35 AUD -
Med-Tek Cal Mag Micro | 1L, 5L, 20L | Calcium Magnesium Supplement
Regular price From $40 AUDRegular priceSale price From $40 AUD -
Med-Tek Super Silica | 1L, 5L | Silica Supplement for Stronger Plants
Regular price From $55 AUDRegular priceSale price From $55 AUD -
Med-Tek Synergy Coir | 275g | Healthier Roots in Coir
Regular price $70 AUDRegular priceSale price $70 AUD -
Med-Tek PK Elicit | 1L, 5L, 20L | Bigger Blooms, Heavier Yields
Regular price From $35 AUDRegular priceSale price From $35 AUD
Hydroponic Boosters & Additives — Push Every Plant to Its Full Potential
Your base nutrients get plants growing. Boosters and additives get them thriving. Whether you're chasing heavier flowers, stronger roots, denser buds, or more resin, the right additive at the right stage makes a measurable difference to your final yield.
Our range is built exclusively around Green Planet Nutrients — a professional-grade brand trusted by serious hydroponic growers across Australia and worldwide.
Shop by Growth Stage
- Propagation & Veg — Vitathrive (B-vitamins & essential elements), Ocean Magic (cold-pressed sea kelp), Root Builder (beneficial bacteria for explosive root development), Plant Guard (potassium silicate for stronger stalks and stress resistance)
- Transition & All-Stage — Pro Cal (calcium & magnesium to prevent deficiencies throughout the entire grow)
- Bloom & Flowering — Massive Bloom Formulation (up to 30% more dry weight), PK Spike (high-concentration phosphorus & potassium bloom trigger), Liquid Weight (carbohydrates & fulvic acid to bulk up flowers), Rezin (essential oil & resin enhancer for aroma and flavour)
Why Add Boosters to Your Feed Program?
- Target specific deficiencies that base nutrients alone can't address
- Maximise flower size, density, and dry weight at harvest
- Strengthen plant structure to support heavier yields
- Enhance terpene, resin, and essential oil production
- Support beneficial microbial life in the root zone
- Improve stress tolerance against heat, pests, and environmental swings
About Green Planet Nutrients
Green Planet formulates every product to work seamlessly together as part of a complete feed program. Each additive is designed to complement your base nutrients — not compete with them — so you can stack products with confidence and dial in your schedule stage by stage.
Available in 1L, 5L, and 20L sizes to suit home growers and commercial operations alike. Free shipping available on qualifying orders across Australia.