Hydroponics allows plants to grow faster and healthier by delivering nutrients directly to their roots through water. But success depends on one thing — the right hydroponic nutrient solution. A well-balanced nutrient feed ensures your plants receive everything they need for strong roots, thick stems, vibrant leaves, and abundant yield — all without soil.
If you’re looking for professional results at home, the CompleteGrow Hydroponic Nutrients A & B Formula is one of Australia’s most trusted systems for clean, consistent feeding. (See product here: https://completegrow.com.au/product/hydroponic-nutrients-fertilizer-two-part-formula-a-b/)
Why Hydroponic Nutrients Matter
In hydroponics, water does all the work — meaning your plants rely 100% on what’s dissolved in it. That’s why you need a balanced mix of macronutrients and micronutrients, in precise ratios. The CompleteGrow two-part formula provides a complete solution:
Part A: Supplies calcium-nitrate, potassium‐nitrate, trace elements for cell strength.
Part B: Adds magnesium, phosphate and additional potassium for photosynthesis and flowering.
Its NPK ratio is about 25-6-40, delivering strong vegetative growth and vibrant fruiting — perfect for leafy greens, herbs, and fruiting vegetables.
For a full explanation of hydroponic nutrient systems, see the guide: Hydroponic Nutrients Guide for Australia CompleteGrow
How to Mix Hydroponic Nutrients
Fill your tank or container halfway with clean water.
Add Part A at recommended dosage (e.g., 3 mL per L), stir.
Add Part B next, stir again.
Never mix the concentrates together undiluted.
Feed plants every 7-10 days or continuously depending on your system. Monitoring pH and EC is key for hydro setups.
Choosing the Best Hydroponic Nutrients for Your Plants
The right nutrient solution depends on your crop type and setup:
Leafy greens & herbs: Use balanced base like CompleteGrow A & B.
Tomatoes & peppers (fruiting): Combine base with calcium/magnesium supplement.
Flowering plants: Use base formula then feed higher P/K during bloom phase.
All formulas from CompleteGrow are 100% water-soluble, Australian-made and compatible with NFT, DWC, flood-and-drain and coco systems. CompleteGrow+1
FAQs About Hydroponic Nutrients
What is hydroponic nutrient solution used for? It delivers all essential nutrients to plants growing without soil — ideal for hydro systems.
How often should I feed hydroponic plants? Typically every watering or reservoir change, depending on system design.
Can I use regular fertiliser in hydroponics? Not safely — soil fertilisers may contain slow-release elements or insoluble particles that clog hydro systems. The guide explains this clearly. CompleteGrow
What pH should I aim for in hydro? Generally between 5.5 and 6.5 for optimal uptake. The guide covers nutrient interaction and this setting.
Final Thoughts
Hydroponics offers tremendous growth potential — but only when paired with the right nutrient strategy. A high-quality hydroponic nutrient solution ensures your plants get the exact nutrition they need, when they need it. With CompleteGrow’s two-part system and the accompanying guide, you’re well-equipped to achieve strong, healthy hydroponic crops.