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Plagron Hydro a+b 2 x 1l
Plagron Hydro A+B 2 x 1L is a highly concentrated two-component base nutrient engineered for the complete growth and flowering cycle in hydroponic systems. Formulated for all inert substrates including clay pebbles, rockwool and perlite, this dual-bottle system delivers a full macro and micronutrient profile. Hydro A supplies NPK 5-0-2 with 8.8% CaO for structural strength. Hydro B provides NPK 2-4-9 with 1.4% MgO for chlorophyll synthesis. All trace elements are DTPA-chelated, ensuring reliable uptake across a pH range of 5.5 to 6.5. At a dilution ratio of 1:400, these two one-litre bottles produce hundreds of litres of nutrient solution. Order this proven hydroponic base feed from our Belgian growshop.
Plagron Hydro A+B 2 x 1L – Complete Two-Component Hydroponic Base Nutrient
Precision nutrition is the foundation of any successful hydroponic grow. Plagron developed Hydro A+B specifically for growers who demand full control over their nutrient delivery. This 2 x 1L set provides everything needed to sustain healthy plant development from vegetative growth through harvest on any inert medium.
Nutrient Profile and Composition
Hydro A and Hydro B are designed as complementary concentrates that together form a complete feed. Hydro A contains calcium nitrate, magnesium nitrate and potassium chloride, delivering an NPK of 5-0-2 with 8.8% calcium oxide (CaO). Calcium strengthens cell walls and improves heat stress tolerance. Hydro B is an EC fertiliser with NPK 2-4-9 and 1.4% magnesium oxide (MgO), providing the phosphorus and potassium essential for energy transfer and flowering, plus magnesium for chlorophyll production. All trace elements are integrated in DTPA-chelated form, maintaining bioavailability across the recommended pH range of 5.5 to 6.5.
Application and Dosing Protocol
Shake both bottles thoroughly before use. Add a maximum of 2.5 ml Hydro A per litre of water (1:400 ratio), then add the same quantity of Hydro B. Never mix the two concentrates directly – always dilute each component separately in water to prevent mineral precipitation. Apply this nutrient solution at every irrigation. Monitor and adjust pH between 5.5 and 6.5 using a Plagron pH regulator. Refer to the Plagron 100% HYDRO grow schedule for phase-specific EC targets.
System Compatibility
Hydro A+B performs reliably across all hydroponic configurations: drip systems, NFT, DWC, ebb-and-flow and aeroponic setups. The formulation is compatible with both drain-to-waste and recirculating systems. No crystallisation occurs in the nutrient reservoir, eliminating a common maintenance issue in closed-loop systems. For enhanced root development during the early vegetative stage, combine with Plagron Hydro Roots.
Why Plagron for Hydroponics?
Plagron has decades of experience developing plant nutrition in the Netherlands, where hydroponic growing is both a science and an industry standard. The 100% HYDRO line is purpose-built to deliver measurable, repeatable results. The high concentration of Hydro A+B makes it cost-effective: at 2.5 ml per litre, two 1L bottles yield approximately 400 litres of working solution. Growers looking to scale up can benefit from the Hydro A+B 2 x 5L for a lower per-litre cost.
Order Plagron Hydro A+B 2 x 1L from plantandflower.be – your specialised Belgian growshop with fast shipping across Belgium.
What is the correct dosage for Plagron Hydro A+B per litre of water?
Add a maximum of 2.5 ml of Hydro A per litre of water, then add the same amount of Hydro B. This 1:400 dilution ratio means two 1L bottles produce approximately 400 litres of complete nutrient solution. Use this solution at every watering throughout the entire growth cycle.
Can Plagron Hydro A+B be used for both vegetative growth and flowering?
Hydro A+B is formulated as a complete base nutrient covering the full plant life cycle. The same product is used during both the vegetative and flowering phases. Adjust the dosage and EC value according to each growth stage as specified in the Plagron 100% HYDRO grow schedule.
What substrates are compatible with Plagron Hydro A+B?
Hydro A+B is designed for all inert substrates including clay pebbles, rockwool, perlite and similar media. It is not optimised for coco coir, which is not fully inert and retains certain nutrients. For coco-based growing, Plagron recommends Cocos A+B instead.
What is the NPK ratio of Plagron Hydro A and Hydro B?
Hydro A delivers NPK 5-0-2 with 8.8% calcium oxide (CaO) and 0.4% MgO. Hydro B provides NPK 2-4-9 with 1.4% magnesium oxide (MgO). Together they supply a balanced and complete nutrient profile optimised for hydroponic cultivation across all growth stages.
