Hy-Pro Hydro A+B – Hydroponic Base Fertilizer for Indoor Growing

Hy-Pro Hydro A+B – Two-Part Base Fertilizer for Hydroponics, Coco and Rockwool

Hy-Pro Hydro A+B is Hy-Pro's two-part base fertilizer for hydroponic growing. It is designed for systems using rockwool, coco coir, coco, and recirculating nutrient solutions, and covers both the vegetative and flowering stages.

It is supplied in two separate components, A and B, which are always dosed in equal parts and dissolved separately in the reservoir to prevent precipitation. When using reused substrate, Cal-Mag should be added.

Key Features

• Two-part formula: separate A and B components to keep the nutrients stable in solution.
• Multi-substrate: suitable for pure hydroponics, rockwool, coco coir, and coco.
• Complete cycle: used the same way in both the vegetative and flowering stages, with only the dosage varying.
• EC control: designed to work within an EC range of 1.2 to 2.2.
• Five sizes: from 500 ml to 20 L to suit the size of the reservoir.

Composition and Technical Data

• NPK: Hydro A = 3-0-2 · Hydro B = 1-3-4
• Type: two-part base fertilizer (A + B)
• Substrate: hydroponics, rockwool, coco coir, and coco
• Stage: vegetative and flowering
• Target pH: 5.5 - 6.0
• Working EC: from 1.2 to 2.2

How to Use

• Reference dosage: 5 ml of Hydro A + 5 ml of Hydro B per liter of water.
• Weeks 1-3: 2.5 ml of A + 2.5 ml of B per liter.
• Weeks 4-6: 4 ml of A + 4 ml of B per liter.
• Weeks 7-9: 4.5 ml of A + 4.5 ml of B per liter.
• Weeks 10-12: 5 ml of A + 5 ml of B per liter.
• Mixing: add component A first, stir, and then add B. Never mix the concentrates together.
• Final adjustment: adjust the pH to 5.5 - 6.0 and check that the EC is between 1.2 and 2.2.
• Reused substrate: add Cal-Mag to replenish the calcium and magnesium.

Available Sizes

• 500 ml
• 1 L
• 5 L
• 10 L
• 20 L

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1. Fill the reservoir with irrigation water before adding the fertilizers.
2. Add Hydro A component first and stir until completely dissolved.
3. Then add the same amount of Hydro B component and stir again. Never mix concentrated A and B.
4. Dose according to the week: 2.5 ml of each per liter in weeks 1 to 3, 4 ml in weeks 4 to 6, 4.5 ml in weeks 7 to 9, and 5 ml in weeks 10 to 12.
5. Adjust the pH of the solution to between 5.5 and 6.0 and check that the EC is between 1.2 and 2.2.
6. Irrigate the system with the solution and, if you reuse the substrate, add Cal-Mag to replenish the calcium and magnesium.