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Hydroponic Nutrients Fertilizer – Two-Part Formula (A & B)

$31.50 – $275.00

Professional-grade liquid fertiliser now bottled for home growers.

✅ Suitable for indoor, outdoor & hydroponic systems
✅ High-grade minerals for fast absorption & strong growth
✅ Includes Potassium Nitrate, Calcium Nitrate, Magnesium & trace elements
✅ Two-part system (Part A & B) for complete plant nutrition
✅ NPK 25-6-40

Australian Owned & Manufactured

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Boost Plant Growth

Description

CompleteGrow A & B Nutrient Solution – Commercial Strength, Home-Gardener Ready

Developed by hydroponic farmers with over 20 years of experience, this premium two-part liquid fertiliser delivers professional-grade nutrition—now made simple for everyday growers.

Suitable for hydroponic systems, indoor plants, outdoor gardens, vegetables, fruit trees, and more. Formulated with high-purity minerals for rapid absorption and visible growth results.

What Makes This Fertiliser Special?

Trusted by commercial growers for consistent performance
Contains all essential macro and micronutrients plants need
100% water-soluble for clean, efficient hydroponic feeding

How to Use

Always dilute Part A and Part B separately in water (never mix concentrates together).

Hydroponics & Seedlings: 3ml Part A + 3ml Part B per 1L water
Potted Plants & Gardens: 4ml Part A + 4ml Part B per 1L water

Typical Nutrient Analysis

(% W/W – formulation basis):

Nutrient	Percentage (% W/W)
Nitrogen (N)	25.6%
Phosphate (P)	5.7%
Potassium (K)	41.5%
Calcium (Ca)	3%
Magnesium (Mg)	1%
Sulphur (S)	1.8%

Trace Elements

Element	Percentage (%)
Iron (EDTA)	0.030%
Manganese (EDTA)	0.012%
Zinc (EDTA)	0.020%
Boron	0.015%
Copper Sulphate	0.004%
Sodium Molybdate	0.002%

Safety Directions

⚠️ Not to be taken. Keep out of reach of children. May irritate skin or eyes. Wash hands after use and rinse all edible plants before consuming. Made in Australia • Used by Professionals • Bottled for Home Gardeners

Commercial Hydroponic Nutrients – Hydroponic Plant Grow Part A & B

Give your plants the expert nutrition they deserve. Developed by hydroponic farmers with 25+ years of experience, CompleteGrow A & B Hydroponic Nutrients Fertilizer is a powerful, two-part liquid formula that delivers complete, balanced nutrition to your hydroponic systems, indoor plants, and edible gardens. Formulated using premium-grade minerals for maximum solubility and fast absorption, this dual-bottle system supports full-cycle plant growth—from root development to flowering and fruiting. Perfect for use with hydroponic setups, coco coir, soil, potted plants, and even vertical gardens.

Professional-grade 2-part nutrient system (A & B)
✅ Suitable for indoor, outdoor & hydroponic setups
✅ High-grade minerals for fast absorption & visible results
✅ Includes Calcium Nitrate, Potassium Nitrate, Magnesium & more
✅ Approximate NPK Ratio: 25 – 6 – 40
✅ Used by commercial growers, now bottled for home use
✅ Australian made with free shipping

NPK Ratio

N
25
P
6
K
40

What NPK 25-6-40 Means (Hydroponic Nutrients)

NPK 25-6-40 is a hydroponic nutrient profile with higher N and K for fast vegetative growth, leaf colour, turgor and yield quality—plus sufficient P to build roots and structure. Ideal for leafy greens, herbs, fruiting crops and general “grow” phases in DWC, NFT, flood & drain, coco and soil.

Hydroponic nutrients: Fully water-soluble minerals for clean reservoirs and rapid uptake.
Performance ratio: 25% nitrogen (growth/green), ~6% phosphate (roots/structure), ~40% potash (vigor, flavour, resilience).
Two-part friendly: Commonly supplied as Part A & Part B to prevent precipitation and nutrient lockout.

In hydroponics, plants receive nutrition directly from the solution, so the NPK balance matters. With 25-6-40, nitrogen (N) supports chlorophyll production and leafy biomass; phosphorus (P) underpins root growth, energy transfer and early flowering signals; potassium (K) regulates water movement, enzyme activity and fruit quality. The elevated K in this profile helps strengthen stems, enhance colour and flavour and improve overall stress tolerance.

Our professional blends use high-purity salts such as Calcium Nitrate, Potassium Nitrate, Magnesium sources and chelated trace elements (Fe, Mn, Zn, Cu, B, Mo) for stability and availability. A two-part (A & B) format keeps calcium separate from phosphates/sulphates until diluted, preventing cloudy precipitates and keeping EC/ppm predictable.

Use: Suitable for hydroponic systems (DWC, NFT, ebb/flow), coco coir and soil. Great for greens, herbs, tomatoes, peppers, berries and ornamentals.
Mixing tip: Always add Part A to water and stir until dissolved, then add Part B. Never mix concentrates together.
Pairs well with: Cal-Mag in very soft water, and a bloom booster later if you want extra flower density.
Application: Follow label rates; apply to moist media. Monitor EC/ppm and pH for consistent results.
Safety: Not to be taken. Keep out of reach of children. Avoid eye/skin contact and rinse edible plants before consumption.

Made for Hydroponic Systems & Grow Tents

Powerful Results in Pots & Garden Beds Too

Hydro: 3ml A + 3ml B per 1L
Soil: 4ml A + 4ml B per 1L

Feed Your Plants

Watch Them Thrive

Hydroponic Nutrients A & B — Mixing Calculator

Choose the guide, enter litres, and we’ll calculate how many ml of Part A and Part B to add (per litre).

Rate preset

Desired solution volume (litres)

Add Part A to water, stir, then add Part B. Never mix concentrates undiluted.

Wow, noticeably better growth and excellent value
(read about my comparison)

I’ve been growing a range of plants in my hydroponic setup, mostly lettuce, kale, and spinach, and after switching to these nutrients, I’ve seen a huge improvement in growth and overall plant health. Everything in my setup stayed the same: lights, trays, timer, etc, so this was a fair comparison, and the difference was clear. My plants are growing faster, look more vibrant, and seem much healthier than when I was using the smaller bottle of nutrients that came with my kit. The cos lettuce (same seeds) also ‘stronger’ if thats possible!

These bottles are also great value for the volume you get. It’s easy to see why they come up as an Amazon recommendation. I didn’t realise how much of a difference nutrient quality could make until now.

I’ve attached a photo of my current setup (at about 4 weeks) so you can see the results for yourself. This is only half grown, I have run out of room. I think they are growing about 30% faster. Highly recommend this if you’re serious about getting better growth from your hydro system.

Holden_

Verified Buyer

They’ve gotten such good results and look at how healthy they are. This customer thought to try our Complete Grow Hydroponic Part A & B and couldn’t be happier with the results. A great yield and great taste. 🥳

Sydney Farmer

Verified Buyer

Why use a 2-part fertiliser?

A & B formulas are separated to prevent nutrient lockout and ensure maximum absorption. This method is used by commercial growers for precise, stable results.

Can I use this on soil and outdoor plants?

Yes! While designed for hydroponics, this formula works just as well for pots, garden beds, and even fruit trees. Just dilute as directed and apply regularly.

What's the NPK ratio and what does it mean?

The approximate NPK is 25-6-40 — high in Nitrogen and Potassium for rapid vegetative growth, with enough Phosphorus to support strong roots and overall structure.

How is this different from normal liquid fertilisers?

Most general fertilisers contain filler and limited nutrients. Ours delivers pure commercial-strength minerals, with macro and micro nutrients for full-spectrum plant health.

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