


Plagron - Hydro B
Brand: Plagron
Sign in to see your pricing
Hydro B
Hydro B is the B-component of Plagron's two-part mineral base nutrient for inert substrates and hydroponic systems, dosed alongside Hydro A through the vegetative and flowering phases. It supplies the magnesium the plant needs for chlorophyll production, completing the nutrient package the two components form together.
Its trace elements are chelated for rapid uptake even when pH or root-zone temperature are not ideal, which is the condition most inert-substrate systems actually run in. The same 1:400 concentration applies, so the pair scales economically to commercial batch tanks.
Available Options
- 1 L
- 5 L
- 10 L
Key Features
- NPK 1-3-6, the phosphorus and magnesium half of the two-part system
- P2O5 3.2 percent, K2O 5.7 percent, MgO 1.4 percent, SO3 2.8 percent
- Full chelated trace package including B, Cu, Fe, Mn, Mo and Zn
- Magnesium supports chlorophyll production
- Uptake continues when pH or root-zone temperature are off optimum
- pH 2.9, EC 111 mS/cm, density 1.16 g/mL
- Dosed in equal measure to Hydro A
Ideal Applications
- Hydroponic systems including recirculating setups
- All inert substrates
- Commercial indoor cultivation at batch-tank scale
- Low root-zone temperature environments
- Paired dosing alongside Plagron Hydro A
Choose options



Plagron - Hydro B
Sale price$20.02