Hydro A+B Plagron – High-Performance Mineral Nutrients for Hydroponic Growth & Flowering

Hydro A+B Plagron is your complete mineral nutrition solution for high-performance hydroponic growing, delivering explosive growth and dense flowering with unmatched efficiency and control.

Still stuck with weak yields and unstable nutrient tanks? Cheap or poorly balanced fertilizers might seem like a bargain at first, but they often lead to poor absorption, pH swings, and wasted feed. You end up feeding more, adjusting constantly, and still seeing lackluster results – not to mention the buildup and clogging that can ruin your system over time.

That frustration adds up: money down the drain, time lost on trial and error, and plants that never reach their full potential. You’re not just losing grams – you’re losing confidence in your setup. The truth is, inconsistent nutrients sabotage even the best grow ops from the inside out.

The solution? Hydro A+B Plagron – a Dutch-engineered, two-part mineral formula that gives you total control while being incredibly easy to use. Because it’s highly concentrated and fully chelated, every drop delivers fast-absorbing nutrients that keep your plants thriving, even under stress. No more guessing, no more waste – just consistent, high-impact results from seed to harvest.

What This Means for Your Grow Room

You’re not just feeding plants – you’re building resilience and maximizing output. With Hydro A+B, your crops handle heat stress better, develop stronger cell walls, and produce more chlorophyll for faster growth. That translates to shorter cycles, denser buds, and a system that runs smoothly with minimal intervention. Whether you're growing cannabis, peppers, or tomatoes, you’ll see the difference in vigor and yield.

Concentration, Stability & Long-Term Efficiency

Hydro A+B is formulated for maximum efficiency and stability in hydroponic and coco systems. Its 1:400 dilution ratio means one liter delivers up to 400 liters of nutrient solution – making it one of the most economical options on the market. Because both parts are fully soluble and chelated, you avoid crystallization and clogging, even in recirculating systems.

• Available in 1L, 5L, 10L, and 20L sizes – perfect for small setups or large-scale grows
• Mix 2.5 ml of Hydro A and 2.5 ml of Hydro B per liter of water for optimal results
• Works flawlessly with inert substrates like rockwool, clay pebbles, and coco coir
• Stable pH and EC values reduce the need for constant adjustments
• Store mixed solution for up to 4 days if kept circulating and in a clean reservoir
• Always use A and B together in a 1:1 ratio for balanced nutrition
• Shake well before use to ensure even distribution of chelated microelements

Why Hydro A+B Dominates the Competition

• Calcium-rich Hydro A strengthens cell walls and protects against heat stress – crucial during intense lighting cycles
• Magnesium-packed Hydro B boosts chlorophyll production, turning light into growth more efficiently
• Full chelation ensures nutrients remain available even in suboptimal pH or temperature conditions
• Precise NPK balance – Hydro A (3-0-1) supports strong vegetative growth, while Hydro B (1-3-6) fuels heavy flowering
• No organic sludge means no bacterial growth or tank contamination in recirculating systems
• Compatible with all hydro setups, from DWC and NFT to drip systems and ebb & flow
• Trusted by pros – used in commercial grows and home setups across Europe for consistent, high-yield results
• Cost-effective long-term – less product used per liter means lower recurring costs over time

Pro Tips to Maximize Your Results

Get the most out of Hydro A+B with these expert tricks: always add nutrients to water, never the other way around. Start at half dose when introducing to young plants or sensitive species. Use a circulation pump to keep your solution oxygenated and stable. And if you're running a drain-to-waste system, consider reusing runoff for outdoor plants – it’s still packed with beneficial minerals.

• Monitor pH daily – aim for 5.5 to 6.5 for optimal uptake
• Check EC regularly and adjust based on growth stage using Plagron’s 100% HYDRO schedule
• Flush your system every 2–3 weeks to prevent salt buildup, even with clean formulas
• Pair with root stimulants like RootStimulator HY-PRO for even stronger development
• Use in combination with bloom boosters during flowering for maximum bud density

Frequently Asked Questions

How long can I store mixed Hydro A+B solution?

You can store the nutrient solution for up to four days if kept in a clean reservoir with constant circulation. Avoid mixing with organic additives, as they can spoil within 48 hours.

Do I need to adjust pH and EC when using Hydro A+B?

Yes – while Hydro A+B helps stabilize both values, tap water varies by region. Always check and adjust pH to 5.5–6.5 using pH Plus or Min. Set EC according to your plant’s growth stage using Plagron’s feeding charts.

Can I use Hydro A+B in coco coir?

Absolutely. Hydro A+B is ideal for coco, offering full control over nutrient delivery and preventing common deficiencies linked to calcium and magnesium.

Is this suitable for recirculating systems?

Yes. Thanks to its clean, non-crystallizing formula, Hydro A+B performs exceptionally well in DWC, NFT, and other recirculating setups without clogging lines or pumps.

Why is chelation important in hydroponics?

Chelation keeps micronutrients available to plants even when pH fluctuates. This prevents lockouts and ensures consistent feeding, especially in cooler root zones or high-stress environments.

Personal Experience of Pevgrow’s CEO (Alan)

I’ve tested nearly every two-part mineral base on the market, and Hydro A+B from Plagron still stands out after all these years. I first used it back in a small DWC setup with auto-flowering strains, and the difference was immediate – stronger stems, darker leaves, and zero pH drama. What sold me was the consistency: no matter the water source or strain, it just works. I now recommend it to anyone running hydro or coco, especially if they’re tired of tweaking and guessing. The 10L combo is my go-to for medium grows – lasts forever and pays for itself in saved time and better harvests. Pro tip: pair it with a good silica additive during veg, and you’ll see rock-solid branches that hold up even under heavy buds.