DutchPro Original Hydro/Cocos Bloom A & B HW bloom nutrients for hydroponic and coco systems with hard water from Grow Island

DutchPro Bloom A & B Hydro/Cocos HW professional bloom fertilizer for hydro and coco cultivation systems

Dutchpro Hydro / Cocos Bloom A+B

Data sheet / description

Ideal for growers in regions with hard tap water. DutchPro Bloom A+B Hydro/Coco for hard water provides a precisely balanced nutrient combination for intensive flower formation and healthy plant development throughout the entire flowering phase.

Product benefits:

Specifically developed for hard water
Suitable for hydro and coco substrates
Supports lush and even flower development
Highly concentrated two-part formula
Simple and precise dosing
Increases yield, flower density, and quality
Promotes plant vitality and resilience
Reduces salt and nutrient buildup in the substrate

Product number	DPO-HCB-AB-1
Manufacturer	DutchPro Dutchpro B.V. / Dutchpro Nutrients De Steiger 86 Almere, Niederlande, 1351 AG info@dutchpro.com https://dutchpro.com/
Weight	2.20 kg

19.90 €

(0)

Leave a review!

Recommend to a friend

Print product page

Product description

DutchPro Bloom A+B Hydro/Coco – for hard water

Two-component flowering nutrient for hydro and coco substrates

DutchPro Bloom A+B Hydro/Coco for hard water is an advanced two-part base nutrient for the flowering phase, specifically designed for hydroponic systems and coco substrates when using hard or standard tap water. This product is aimed at growers who want to achieve stable nutrient uptake, strong flower development, and maximum yields even under challenging water conditions.

Hard water presents a particular challenge in indoor and hydro cultivation, as high calcium and magnesium levels can quickly lead to nutrient imbalances, salt buildup, or lockouts. DutchPro addresses this with a precisely tuned nutrient formula optimized specifically for these conditions.

Developed for the demands of the flowering phase

During flowering, plant requirements change fundamentally. The focus shifts away from vegetative growth and toward:

flower initiation and development
energy and metabolic processes
cell stability and nutrient transport
flower quality, density, and weight

DutchPro Bloom A+B Hydro/Coco delivers exactly the nutrients plants need in this phase to fully express their genetic potential – without overfeeding or unnecessary stress on the substrate.

Optimized for hard tap water

The HW (Hard Water) version was developed specifically for regions with high starting EC values. Its adjusted composition:

accounts for the natural mineral structure of hard water
creates a stable nutrient solution
reduces the risk of calcium and magnesium excess
improves the uptake of phosphorus and potassium

The result is an even, controlled nutrient availability that remains stable throughout longer flowering cycles.

Two-part system for maximum stability

DutchPro deliberately uses an A+B system to ensure the chemical stability of nutrients. Certain elements cannot be stored together in highly concentrated form without losing effectiveness.

Bloom A contains, among others:

phosphorus for flower formation and energy processes
potassium to regulate water balance and flower density
trace elements such as iron, zinc, and manganese

Bloom B provides:

calcium for strong cell walls and healthy flower structure
magnesium as a central element of photosynthesis
sulfur to support enzymes and amino acids

Only when combined in the irrigation water does a complete, highly available nutrient solution emerge.

Clean solution without buildup

Another key advantage of DutchPro Bloom A+B Hydro/Coco is the high purity of its ingredients. With proper dosing:

salt buildup is minimal
drippers and lines remain clean
the nutrient is suitable for recirculating systems
the root zone is protected

Especially in hydro and coco systems, a clean nutrient solution is essential for long-term stability and consistent results.

Benefits of DutchPro Bloom A+B Hydro/Coco for hard water

Specifically developed for hard tap water
Promotes intensive flower formation and higher yields
Highly concentrated and economical
Optimal nutrient uptake without lockouts
Supports plant health and vitality
Suitable for hydroponics and coco substrates
Minimizes salt and nutrient buildup
Clear, stable nutrient solution
Ideal for demanding grow setups

Application and dosage

Application is simple and precisely controllable, which is especially advantageous in hydro and coco systems.

Basic rules:

Shake bottles well before use
Never mix component A and B undiluted
Always add A first, then B to the water

Recommended dosage:

Start of flowering: 2–3 ml Bloom A + 2–3 ml Bloom B per liter of water
Full flowering phase: up to 4 ml Bloom A + 4 ml Bloom B per liter
Use with every watering during the flowering phase

Dosage should always be adjusted to plant condition, EC level, and the specific system used.

Which systems is DutchPro Bloom A+B suitable for?

Hydroponic systems (NFT, DWC, Ebb & Flow, drip)
Coco substrates
Recirculating and non-recirculating systems
Indoor grows with controlled irrigation

For soft water or reverse osmosis water, DutchPro recommends the specially adapted SW version.

Conclusion

DutchPro Bloom A+B Hydro/Coco for hard water is the ideal solution for growers who want to achieve a controlled, efficient, and high-yielding flowering phase even under challenging water conditions. The precisely tuned two-part formula ensures healthy plants, powerful flowers, and consistent results – from the first week of bloom until harvest.

A reliable flowering nutrient for professional hydro and coco grows that combines quality, efficiency, and ease of use.