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Terra Aquatica Humic – Organic Vegan Humic Acids (GHE Diamond Black)

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Unlock the full potential of your crop with Terra Aquatica Humic, the premium source of humic acids formerly known as Diamond Black. Derived from sustainable wood sources, this 100% organic and vegan biostimulant improves nutrient absorption, stimulates microbial life, and enhances soil structure. Perfect for hydroponics, soil, and coco, it ensures your plants assimilate every drop of fertilizer for vigorous growth and heavy harvests.
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Terra Aquatica Humic is the missing link in your feeding schedule, a high-quality source of humic acids derived from wood (ligno-humates) that acts as a turbocharger for your plants. Formerly known as the legendary GHE Diamond Black, this 100% organic and vegan product doesn't just feed your plants; it fundamentally changes how they interact with the substrate and nutrients, ensuring that every gram of fertilizer you use is converted into pure plant mass.

Why are your fertilizers not working at 100%?

You invest in the best nutrients, adjust the pH, and buy high-end lights, yet sometimes your plants still look stuck, show deficiencies, or simply don't reach that "monster" size you were expecting. It feels like you are throwing money into the soil without getting the return on investment you deserve.

There is nothing more frustrating than seeing a plant struggle to eat. When the substrate is blocked or the nutrients are locked out, your plant starves in the middle of a banquet. This leads to slow growth, weak stems, and eventually, a mediocre harvest that doesn't reflect the hours of work you put in. You are wasting expensive fertilizer and losing time.

The solution is Terra Aquatica Humic. By introducing high-quality humic acids, you create a bridge between the nutrients and the roots. These acids act as natural chelators, grabbing minerals and making them easily absorbable for the plant. It transforms a passive substrate into a biologically active engine, ensuring your plants get exactly what they need, right when they need it.

Technical Specifications of Terra Aquatica Humic

  • Brand: Terra Aquatica (formerly GHE - General Hydroponics Europe).
  • Product Type: Organic Biostimulant / Humic Acids.
  • Source: Ligno-humates derived from recycled wood (sustainable).
  • Composition: Pure humic acids, 100% organic and vegan.
  • Compatibility: Soil, Coco, Hydroponics, and Bioponics.
  • Application: Irrigation or Foliar Spray.

Advantages over other additives

While many humic products are derived from leonardite (mined coal), Terra Aquatica Humic comes from a renewable wood source. This makes it significantly cleaner and free from the heavy metal residues often found in mined products.

  • Ultra-clean formulation: Being wood-based, it leaves no residue, making it safe for drippers and Hydroponic and Aeroponic Systems where clogging is a nightmare.
  • Total Versatility: It works as a soil conditioner, a nutrient enhancer, and a compost accelerator.
  • Stability: It helps buffer the pH in the root zone, preventing the fluctuations that stress your plants.
  • Water Retention: It improves the structure of your Soil For Cannabis, helping it hold moisture without becoming waterlogged.

Real benefits you will notice in your crop

When you start using Humic, the first thing you'll notice is the root explosion. A better root system means a plant that drinks and eats more. This translates directly into faster vegetative growth and shorter internodal spacing.

Furthermore, by improving nutrient uptake, you will see lush, dark green leaves—a sign of perfect health. During flowering, this efficiency allows the plant to focus all its energy on bud production rather than fighting for survival, resulting in heavier, denser, and more aromatic flowers.

How to use Terra Aquatica Humic step by step

  1. Preparation: Shake the bottle well before use.
  2. In Irrigation (Soil/Hydro): Dilute 4 ml per liter of water. You can mix it with your base nutrients.
  3. Foliar Spray: Dilute 2.5 ml per liter of water and spray the leaves (underside and top) when the lights are off or the sun is low to avoid burns.
  4. Frequency: Use it throughout the vegetative stage and the first weeks of flowering.
  5. Compost Tea: Add it to your compost tea brew to multiply microbial activity.

Frequently Asked Questions

Is it compatible with other fertilizer brands?

Yes, absolutely. Terra Aquatica Humic works with any brand of cannabis fertilizers. In fact, it makes them more effective.

Can I use it in flowering?

Yes, it is recommended to continue using it during the transition and early flowering to support the stretch and initial bud set. You can stop using it in the final weeks of flushing.

What is the difference between Humic and Fulvic?

Humic acids (Humic) are larger molecules that improve soil structure and nutrient retention. Fulvic acids (like TA Fulvic) are smaller and work more on transport within the plant. They work best when used together.

Does it affect the pH of the water?

It has a minimal effect, but because it is an organic acid, it can slightly lower pH. Always measure your pH after adding all additives to the water.

Personal Experience of Pevgrow’s CEO (Alan)

"I've been using this product since it was called Diamond Black, and it's a staple on my shelf. I love it because it's 'clean'—unlike other thick, sludge-like humic products, this one doesn't clog my drippers. I use it heavily in the first 3 weeks of veg; the difference in root mass is night and day compared to plants that don't get it. If you are growing in coco, this is mandatory to give the substrate some 'soul' and buffer capacity."

Composition: Composition Organic
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)
    View all

    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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