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Fulvic-Blast by Aptus-Holland – Complete Microelement Booster for Cannabis Health & Yield

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Fulvic-Blast by Aptus-Holland is your plant's ultimate health insurance. This powerful, fully organic microelement booster stops deficiencies before they start, detoxifies your crop, and supercharges nutrient absorption for explosive, resilient growth and massive yields. It's the secret weapon for growers who refuse to compromise.
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Fulvic-Blast by Aptus-Holland is the definitive microelement booster designed to bulletproof your cannabis plants, ensuring they reach their full genetic potential without the setbacks of nutritional imbalances or toxic buildups.

Ever feel like you're constantly fighting mysterious yellowing, slow growth, or weak plants despite feeding them correctly? You're not alone. Nutrient lockout and microelement deficiencies are silent killers, robbing your buds of density, flavor, and potency long before harvest. The frustration of watching weeks of care result in a mediocre yield is a pain every grower knows. But what if you could prevent all that with a single, powerful weekly addition?

Fulvic-Blast is the solution. This isn't just another additive; it's a complete system reset for your plant's nutrition. It acts like a master key, unlocking and chelating essential minerals already present in your substrate, making them instantly available to your plants. It also binds to and helps flush out heavy metals and excess nutrient salts that cause lockout. The result? A plant that's not just surviving, but thriving—with deeper green colors, stronger cell walls, and an immune system ready to handle stress.

Quick Spec Sheet: Fulvic-Blast

  • Brand: Aptus-Holland
  • Type: Liquid microelement booster & plant stimulant
  • Key Action: Chelation, detoxification, deficiency prevention
  • Primary Components: High-grade low molecular fulvic acid, L-amino acids, plant stimulants
  • Essential Microelements: Iron (Fe), Zinc (Zn), Manganese (Mn), Copper (Cu), Boron (B), Molybdenum (Mo), and more.
  • Application: 3 ml per 10 liters of water (a 1:3333 ratio)
  • Frequency: Use once per week throughout the entire growth cycle
  • Solubility: 100% water-soluble, leaves no residue in irrigation systems

Key Advantages Over Basic Nutrient Regimes

While base nutrients feed your plants, Fulvic-Blash ensures they can actually use that food. Think of it as the difference between having a full pantry and having a fully functional digestive system.

  • Superior Chelation: Its fulvic acid has an extremely low molecular weight, allowing it to bind to minerals and transport them directly into plant cells more efficiently than standard chelates.
  • Preventative Action: Regular use stops microelement deficiencies before they manifest as visual symptoms, preventing growth stalls and crop stress.
  • System Detox: It actively breaks down nutrient salt buildups and helps remove heavy metals, preventing root zone toxicity and lockout.
  • Metabolic Boost: Stimulates the conversion of carbohydrates into sugars, fueling stronger growth and improving final bud quality.
  • 100% Organic & Soluble: Integrates seamlessly into any grow style—soil, coco, or hydro—without clogging systems or leaving harmful residues.

Real Benefits You're Going to Notice

Using Fulvic-Blast translates into tangible results you can see and smell. Your plants will exhibit a vigor that's hard to miss. Expect a richer, deeper green coloration across all foliage—a clear sign of optimal chlorophyll production and iron uptake. Growth rates will noticeably accelerate as the plant efficiently uses every bit of nutrition you provide. Most importantly, you'll build a resilient plant. When flowering hits or environmental stress occurs, your crop will have the foundational strength to power through, leading to denser, more resinous buds that truly express their genetic profile. It's the difference between a good harvest and a legendary one.

Step-by-Step Usage Guide

  1. Preparation: Ensure your nutrient solution is mixed and at the correct pH and EC for your growth stage.
  2. Dosing: Add 3 ml of Fulvic-Blast per 10 liters of final feeding solution. Always shake the bottle well before use.
  3. Mixing: Stir thoroughly to ensure complete integration. Its high solubility means it blends effortlessly.
  4. Application: Use this fortified solution to water your plants as you normally would, ensuring even root zone coverage.
  5. Frequency: Apply once every 7 days throughout the vegetative and flowering stages for continuous support.
  6. Observation: Within a few applications, you should observe improved leaf color, stem strength, and overall plant turgor.
  7. Storage: Keep the bottle in a cool, dry place away from direct sunlight to preserve its potency.

Frequently Asked Questions

Can I use Fulvic-Blast with any nutrient brand?

Absolutely. Fulvic-Blast is designed to be universally compatible. It works synergistically with any nutrient line, whether mineral or organic, in soil, coco, or hydroponic systems. It enhances what you're already using.

Is it safe to use during the flowering stage?

Yes, it is not only safe but highly recommended. Providing a steady supply of chelated microelements during flowering supports crucial processes like resin production and terpene development, leading to better aroma, flavor, and potency.

What's the difference between Fulvic-Blast and a standard Cal-Mag supplement?

While Cal-Mag focuses on two primary secondary nutrients, Fulvic-Blast is a comprehensive microelement package. It includes Cal-Mag components but also delivers a full spectrum of trace minerals (Zinc, Copper, Molybdenum, etc.) and the unique benefits of fulvic acid for chelation and detoxification.

How soon will I see results?

Many growers report visible improvements in plant color and vigor within 1-2 weeks of consistent use. It acts as both a corrective and a preventative, so while it can help address existing mild deficiencies, its true power is in preventing issues from arising in the first place.

Can I overdose my plants with it?

When used at the recommended dosage of 3ml/10L weekly, the risk of over-application is very low. It is a gentle, organic-based product. However, always stick to the guidelines—more is not better. Its role is to optimize, not overwhelm.

Personal Experience of Pevgrow’s CEO (Alan)

"Let me be straight with you: I used to chase deficiencies. A little yellowing here, some purple stems there—I'd be mixing up custom fixes, always reacting. Fulvic-Blash changed that game entirely. Now, it's a non-negotiable part of my weekly feed from veg right through to week 6 of flower. I run it in my coco setups and my organic living soil beds. The most obvious difference is in the plant's 'health glow.' The greens are just more vibrant, and the plants seem to handle light stress and temperature swings way better. I've compared runs with and without it, and the ones with Fulvic-Blast consistently finish with heavier, more aromatic buds. It's like giving your plants a daily vitamin and a detox at the same time. For the cost of a few cents per plant per week, the insurance it provides against crop failure is a no-brainer. My tip? Don't wait for a problem to show up. Start using it early in veg to build strong, resilient plants from the ground up."

Cultivation phase: Cultivation phase Growth
Type of crop: Type of crop Soil
Composition: Composition Mineral
Brands: Brands Aptus-Holland


  • 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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