Hydro A & B. By Plagron. 

When it comes to hydroponics, the margin for error is thinner than a politician’s apology. There's no soil to buffer your mistakes, no friendly microbes to pick up the slack. What you feed is what the plant gets, end of story. That’s where Plagron Hydro A & B steps in - a scientifically tuned, mineral-based nutrient formula designed by expert Dutch growers for those who demand precision, consistency, and relentless plant performance. Whether you’re cultivating in a compact tent or managing an industrial run-to-waste operation, Plagron Hydro A & B is built to deliver.

For Expert Growers.

Hydroponic growing isn’t for the faint-hearted. It demands accuracy, and Plagron Hydro A & B offers exactly that by giving you complete control over EC and pH values. This two-part formula allows you to dial in nutrient concentrations with exacting precision, meaning your plants aren’t just surviving - they’re thriving. Both Hydro A and Hydro B contain chelated trace elements, which means that even if your pH swings a little or your water temperature dips, those vital nutrients remain fully available to the plant. No deficiency symptoms, no yellowing disasters - just solid, uninterrupted growth.

Premium Nutrition. Premium Flavours.

Hydro A & B goes beyond just chucking in a few macros and calling it a day. Hydro A is loaded with calcium, a critical element that does more than strengthen plant cell walls - it acts like a defensive shield against heat stress, helping your plants stay upright and vigorous even under intense light. Meanwhile, Hydro B is packed with magnesium, the key driver behind chlorophyll production. That means more photosynthesis, more sugar production, and ultimately, more biomass. It’s like turning the whole grow room into a metabolic pressure cooker.

For Craft Quality Plants.

What makes Plagron Hydro A & B particularly compelling is its adaptability. Whether you’re running deep water culture (DWC), nutrient film technique (NFT), flood-and-drain, or a traditional dripper system, this formula won’t clog lines, won’t precipitate out, and definitely won’t leave your reservoir looking like a science experiment gone wrong. Its non-crystallising nature keeps everything flowing smoothly, giving you more uptime and fewer headaches. And because it’s highly concentrated, you’ll be using less per litre - up to 2.5ml per litre of water - which makes it exceptionally cost-effective in larger systems.

Made In Holland. 

But perhaps the most underrated strength of Plagron Hydro A & B is its forgiving nature. Plants aren’t machines - they fluctuate, they stress, and yes, they sulk. But thanks to the chelated trace elements and wide pH uptake range, Hydro A & B keeps feeding even when conditions aren’t perfect. That’s especially handy during the transition between growth and bloom, when metabolic demands change dramatically. With this two-part system, you won’t have to panic every time your digital meter blinks red.

Some Of The Best You Can Get.

Available in 1, 5, 10, and 20-litre sizes, Plagron Hydro A & B caters to everyone from the hobbyist to the commercial grower. It’s a core product in Plagron’s elite line-up of hydroponic nutrients, developed by people who actually grow - not just chemists in lab coats. If you’re looking for a no-nonsense, high-performance base nutrient that handles the complexities of hydroponics with ease, Plagron Hydro A & B is your new best mate. Because in the fast-paced world of water-based growing, you don’t just need nutrients - you need Hydro A & B.