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Calmafer Cannotecnia is the definitive tool to save your crop from the dreaded nutrient deficiencies that turn leaves yellow and stop growth. If you are looking for a professional corrector that provides Calcium, Magnesium, and Iron in a single application, this is the product that will bring the green vigor back to your grow room.
There is nothing more frustrating than watching your plants lose their color and strength, even when you think you are feeding them correctly. You see yellow spots, weak stems, or pale leaves, and the uncertainty sets in: is it a pest? Is it pH? Often, the problem is simpler but more dangerous: a lack of essential secondary nutrients. If you use osmosis water or grow in soft water areas, you are basically starving your plants of the mineral foundation they need.
This lack of control creates constant anxiety. You spend your day checking leaves, worrying that the harvest will be poor or that the buds won't fatten up because the plant structure is too weak to support them. Ignoring these signs can lead to a blocked crop and a waste of months of work.
Calmafer Cannotecnia puts you back in the driver's seat. It is specifically designed to fill those nutritional gaps instantly. By adding this cocktail of essential minerals, you ensure that your plants have the solid structure and photosynthetic capacity necessary to produce heavy, high-quality flowers.
Discretion in growing also means not having to ask for help desperately because your plants are dying. With Calmafer, you solve the problem internally and quickly. Its formula is designed to be invisible in terms of residues but highly visible in results.
Whether you are growing in coconut, hydroponics, or soil for cannabis, this product acts as a safety net. It allows you to use purified water without the fear of leaving your girls "thirsty" for minerals. It's the secret weapon to keeping a low profile: healthy plants don't cause problems.
Using Calmafer is simple, but precision is key to getting the best results without overdoing it. Follow these steps to integrate it into your routine:
Yes, absolutely. In fact, it is designed to be used alongside your NPK fertilizers. Just remember to add Calmafer to the water first, mix well, and then add the rest of the nutrients.
Yes, autoflowering plants often have a high demand for Calcium and Magnesium, especially under powerful LED lights. Calmafer is perfect for keeping them healthy throughout their short cycle.
You can use it throughout the vegetative and flowering phases. It is recommended to stop using it during the final root flush (last week or two) so the plant consumes its reserves.
If your tap water is already "hard" (high EC), you probably don't need Calmafer regularly, unless you see specific deficiencies. It is essential for soft or osmosis water.
I've learned the hard way that underestimating the importance of Calcium and Magnesium is a rookie mistake that even pros make when switching setups. When I started using high-intensity LED lights, my usual nutrient routine fell short; the plants were eating Calcium like crazy and showing rust spots in the third week of flowering.
Since then, Calmafer Cannotecnia has become a staple on my shelf. My ritual is simple: I start with osmosis water, add Calmafer until the EC hits 0.4, and only then do I start my feeding chart. It's the only way I've found to guarantee that the base is solid. If you want to avoid surprises and keep those leaves praying to the light, this bottle is a must-have.
| Cultivation phase: | Flowering Stimulating germination |
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| Properties: | Regulators pH | |
| Preventive: | Show only preventative |
Yes, the shipment is 100% discreet, no one will know what you have bought, also the sender is SITE OF SHOPS ONLINE.
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.
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.
In 24/48 hours we will ship your order.
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.
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!
Among all those who comment or send us your questions, there will be a monthly raffle for a €50 voucher for your purchases at Pevgrow. What are you waiting for? Write us and participate!
After using Calmafer from Cannotecnia on my cannabis plants, I am impressed with the quick and effective results, correcting nutritional deficiencies and leaving my plants visibly healthier.