FloraMicro Hard Water GHE – Nitrogen & Calcium Base Fertilizer

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FloraMicro Hard Water GHE is the essential foundation of the 3-part Flora Series system. Designed specifically for growers using tap water with high mineral content (EC > 0.6), it provides nitrogen, calcium, and chelated micronutrients. It stabilizes pH and prevents nutrient lockout, ensuring your plants absorb exactly what they need for explosive growth and heavy flowering without the risk of deficiencies.
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FloraMicro Hard Water GHE is the intelligent foundation of the legendary 3-part nutrient system, specifically engineered to turn difficult tap water into a goldmine of nutrition for your crop, ensuring vigorous structure and total nutrient absorption. Unlike standard bases, this formula is designed to work with the calcium already present in your water, not against it.

Stop gambling with your hard water harvests

There is nothing more frustrating for a grower than seeing your results change from one crop to the next, even when you think you are doing everything the same. You use the same lights, the same genetics, but suddenly your plants show mysterious spots, slow growth, or burnt tips. Dealing with hard water (tap water with high mineral content) often feels like fighting an invisible enemy that sabotages your stability.

This inconsistency eats away at your confidence. You start buying additives you don't need, flushing roots desperately, and wasting time trying to guess if it's a magnesium deficiency or a pH lockout. Meanwhile, your plants are stressed, and you know that stress equals less weight on the scale. Trying to grow professional-grade weed with unstable water parameters is like trying to drive a sports car on an icy road.

FloraMicro Hard Water GHE is the tool that puts you back in the driver's seat. By using a formula specifically chelated to handle high Calcium levels (above 70mg/L), you eliminate the guesswork. It transforms a volatile variable—your water quality—into a constant, reliable foundation, allowing you to achieve repeatable, heavy harvests cycle after cycle.

Why FloraMicro Hard Water guarantees consistent results

The secret to the stability this product offers lies in its "Micro" composition. It doesn't just provide Nitrogen and Calcium; it delivers a full spectrum of essential micronutrients (boron, copper, iron, manganese, zinc) in chelated forms. This means that even if your water's pH fluctuates slightly—common with hard water—the nutrients remain available to the plant rather than precipitating and turning into "rocks" at the bottom of your tank.

Furthermore, this cannabis fertilizer acts as a powerful pH buffer. Hard water is notorious for having a high alkalinity that constantly pushes pH up. FloraMicro Hard Water contains organic buffers that help stabilize the solution, keeping the acidity in the sweet spot where your plants can eat voraciously without you having to add acid every few hours.

Factors that influence your result and how to control them

  • Water Hardness (EC): If your tap water has an EC of 0.6 or higher, standard nutrients will cause lockout. This formula balances that excess mineral content.
  • Mixing Order: This is the #1 rule for consistency with GHE. FloraMicro must always go into the water first. This prevents nutrient lockout before it even reaches the roots.
  • pH Stability: Hard water fights against pH down. The buffers in this bottle help you win that battle, keeping the solution stable for longer periods.
  • Nutrient Ratios: By using the 3-part system (Micro, Gro, Bloom), you control the diet. Micro is the constant; you just adjust the others based on the life stage.
  • System Type: Whether you are in soil or using high-performance Hydroponic and Aeroponic Systems, the chelated formula ensures no clog-causing sediments form.

Recommended routine for perfect nutrient solution

  1. Check your water: Use your Humidity controller (and EC meter) to confirm your starting water is actually hard (EC > 0.6).
  2. Add Micro FIRST: Pour the FloraMicro Hard Water into the water and stir well. This is non-negotiable.
  3. Add the rest: Once Micro is mixed, add FloraGro and then FloraBloom, stirring between each addition.
  4. Check pH: Adjust to 5.5–6.5. You will notice it holds much better than with generic nutrients.
  5. Record it: Note down the ml/L used. With this stability, you can repeat this exact recipe next time for the same killer results.

Advantages and benefits of mastering your water

  • Total Confidence: You stop worrying about "bad water days" and focus on training your plants.
  • Zero Lockout: Prevents the dreaded Calcium-Magnesium lockout common in tap water grows.
  • Economic Efficiency: No need to buy expensive Reverse Osmosis (RO) systems if your tap water is usable with the right nutrient.
  • Vigorous Growth: Plants that aren't fighting for food grow faster, greener, and stronger.
  • Professional Quality: Consistency in the root zone leads to consistency in the terpene profile and potency of your buds.

Frequently Asked Questions

How do I know if I need the Hard Water or Soft Water version?

If your tap water has an EC above 0.6 (or contains more than 70mg/L of Calcium), you need this Hard Water version. If you use Reverse Osmosis (RO) water, rain water, or very soft tap water, choose the Soft Water version.

What happens if I mix the components in the wrong order?

If you mix FloraGro or FloraBloom before FloraMicro, or mix them undiluted, a nutrient lockout (precipitation) occurs. The liquid will turn cloudy, and those nutrients become unavailable to the plant. Always Micro first!

Can I use this in soil or coco coir?

Absolutely. While it is famous in hydroponics, the Flora Series is excellent in soil and coco. Just remember that in soil, you typically feed every other watering or at a lower dosage compared to hydro.

Personal Experience of Pevgrow’s CEO (Alan)

I'll be honest, for years I was obsessed with using only RO water because I didn't trust my tap water. It felt like every time I used the hose, my plants would get cranky. But hauling water jugs or changing filters is a hassle. When I properly tested the FloraMicro Hard Water GHE, it was a game changer for my "lazy" setups.

I realized that my tap water wasn't "bad," it just needed the right partner. This bottle allowed me to use the water straight from the tap (after letting the chlorine evaporate, of course) and hit the exact same EC numbers week after week. The plants looked lush, dark green, and I didn't see a single rust spot on the leaves. If you have hard water, don't fight it—use this to work with it.

Cultivation phase: Cultivation phase Growth
Properties: Properties Regulators pH
Type of crop: Type of crop Soil
Composition: Composition Mineral
Brands: Brands GHE General Hydroponics (Aeroflo


  • Is the shipping discreet?

    Yes, the shipment is 100% discreet, no one will know what you have bought, also the sender is SITE OF SHOPS ONLINE.

  • Do you ship worldwide?

    Yes, we ship to almost every country in the world although you need to know the current legislation in your country to make sure that you do not break any regulations with the germination of the seeds.

    UK: 3-4 days (express)
    USA: 4-5 days (express)
    Australia: 4-5 days (express)
    Japan: 4-5 days (express)
    Canada: 4-5 days (express)
    South Africa: 4-5 days (express)
    New Zealand: 5-7 days (express)
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    The customer must be informed about the laws of their country regarding seeds or other products that may be purchased on our website, the possession of which may constitute a criminal offence in the country of receipt.

    We cannot be made responsible for the wrong use that some people decide to give to the seeds, so please don't act against your national laws.

    Due to problems with customs you can check here for restrictions to certain countries.

  • What payment methods and currencies do you accept?

    We accept the following payment methods: Bank transfer, Cryptocurrencies, cash, credit and debit cards and cash on delivery (Spain, Belgium, France, Italy, Portugal).

    You can change the currency on the top right to know the price of the products in your local currency and of course pay this way.

  • How long does it take to ship my order?

    In 24/48 hours we will ship your order.

  • Are the seeds guaranteed to germinate?

    If you live in a country where the cultivation of cannabis is legal and you decide to plant the seeds, it is good that you know that all the seeds that we commercialize have germination guarantee.

    If you germinate with the method of paper napkins and you have followed all the steps that we indicate here, you will only have to return us the seeds not germinated in their original packaging and when we receive them we will proceed to the change.

    Then we take care of requesting the return to the seed bank, we do not transfer this responsibility and time to our customers.

  • What if I receive a bad or damaged product?

    If you receive a broken product due to transport, you have to notify us within 24 hours for insurance coverage, always contact us as soon as possible and we will fix the problem!

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