Dutch Pro pH Down Bloom for Hydroponic pH Control

Phosphorus-Based pH Correction Built for Bloom

A concentrated pH adjuster for growers who want their reservoir dialled in rather than roughly close. Dutch Pro pH Down Bloom lowers the pH of a mixed nutrient solution and helps hold the 5.5 to 6.5 range where nutrients stay available, while supplying an additional source of phosphorus to support balanced nutrition through the later stages of development. It is highly concentrated, so only small adjustments are needed, and it suits soil, coco and hydroponic systems alongside any complete feeding programme.

Key Benefits

• Phosphorus-based correction, so lowering pH also contributes to bloom nutrition
• Holds pH 5.5-6.5, the band that keeps nutrient availability consistent
• Highly concentrated, meaning small additions move a full reservoir
• Soil, coco and hydro compatible, one product across every room
• Fine control, letting you creep up on target rather than swinging past it
• Trusted Dutch Pro formulation used by growers worldwide

Nutrient Lockout in Late Flower

Once a tank drifts high, phosphorus, iron and manganese start locking out and you get poor nutrient uptake right when demand peaks. The symptoms look like a feed problem, so growers push EC, the plants take up even less, growth slows and flowers finish airy and light. Correcting downward into the 5.5 to 6.5 window keeps the solution available at the root, so the bloom feed you are already running does its job and yields hold up.

How to Use

• Order of mixing: add and stir all nutrients first, then adjust pH last
• Target range: pH 5.5 to 6.5, measured with a calibrated meter
• Application: add small amounts at a time, mix thoroughly and let the solution stabilise before retesting
• Soil: aim towards the upper end of the range and retest after each top-up
• Coco and hydro: work towards the lower end and check the tank daily as plants drink
• Never add concentrated products directly together