Boost Your Plant Nutrition with Med-Tek Cal Mag Micro

Med-Tek Cal Mag Micro is a high-quality nutrient supplement designed to enhance plant health and correct nutrient deficiencies. With its concentrated blend of calcium, magnesium, and full-spectrum micronutrients, this product is suitable for use in both soil-grown plants and hydroponic systems. It promotes strong stems and leaves, improves vascular system development, and ensures overall increased plant growth and performance.

Features and Benefits

  • Supplemental elements: Calcium, magnesium, and micronutrients work together to boost plant nutrition and correct deficiencies.
  • High-quality ingredients: Utilises food and agricultural grade calcium sources to ensure maximum nutrient bioavailability and quality in solution.
  • Strong stems and leaves: Calcium helps in forming pectin, which strengthens plant stems, leaves, and vascular systems.
  • Wide range of applications: Suitable for both soil-grown plants and hydroponic systems, offering versatility to growers.
  • Available in multiple sizes: Choose from 1L, 5L, and 20L sizes to suit your gardening needs.

How to Use

  1. First, determine whether your plants need extra calcium, magnesium, and micronutrients. Signs of deficiency include yellowing leaves, stunted growth, and weak stems.
  2. For soft water conditions, use 1ml of Med-Tek Cal Mag Micro per litre of water when using a Med-Tek base nutrient.
  3. To correct nutrient deficiency symptoms, increase the dosage to 2ml per litre of water.
  4. Mix the solution well and apply to your plants as needed, monitoring for improvements in growth and overall health.

Aqua Gardening Suggests These are Best For

Med-Tek Cal Mag Micro is best for growers who want to improve their plants' overall health, strength, and performance in both soil-grown and hydroponic systems. It is particularly beneficial for plants displaying signs of calcium, magnesium, or micronutrient deficiencies, like yellowing leaves, weak stems, or stunted growth.

Notes from Aqua Gardening

  • Med-Tek Cal Mag Micro composition: Ca 3%, Mg 1%, Chelated Fe 0.04%, Chelated Mn 0.01%, Chelated Zn 0.007%, Chelated Cu 0.001%, B 0.01%, and Mo 0.0009%.
  • Always monitor your plants closely when using any nutrient supplement, adjusting as needed to avoid over-correction.
  • Store in a cool, dry place and out of direct sunlight to ensure product longevity and effectiveness.


What is Med-Tek Cal Mag Micro?

Med-Tek Cal Mag Micro is a concentrated blend of readily available calcium, magnesium, and full-spectrum micronutrients designed to boost plant nutrition and correct nutrient deficiency problems. It is suitable for use with both soil-based plants and hydroponics systems, ensuring strong stem and leaf development and overall plant growth.

What is the nutrient analysis of Med-Tek Cal Mag Micro?

Med-Tek Cal Mag Micro contains the following nutrients:

- Ca 3%

- Mg 1%

- Chelated Fe 0.04%

- Chelated Mn 0.01%

- Chelated Zn 0.007%

- Chelated Cu 0.001%

- B 0.01%

- Mo 0.0009%

How do I use Med-Tek Cal Mag Micro to correct calcium and magnesium deficiencies?

To correct calcium and magnesium deficiencies in soft water, use a dosage rate of 1ml per litre of water when using Med-Tek base nutrient. If you need to correct nutrient deficiency symptoms, use a dosage rate of 2ml per litre of water.

Can Med-Tek Cal Mag Micro be used with hydroponic systems?

Yes, Med-Tek Cal Mag Micro is designed for use in both soil-based and hydroponic systems. It is essential for plant growth and ensures healthy, robust plants.

When should I use Med-Tek Cal Mag Micro in my plant's life cycle?

You can use Med-Tek Cal Mag Micro throughout your plant's life cycle to strengthen its vascular system, produce thicker stems, and build new cell walls at the growing tips, thus promoting overall plant health and growth.

In which sizes is Med-Tek Cal Mag Micro available?

Med-Tek Cal Mag Micro is available in three sizes: 1L, 5L, and 20L.

Still Unsure if This Product is Right for You?

  • Submit a question via the Reviews & Questions tab on this page, and our team will respond to you
  • Login to check your Aqua Gardening Member Price
  • Book a free Consult with the Aqua Gardening team here
  • Still Overwhelmed? Start your Gardening Journey with a free eBook here

(SKU: 130287)

Shipping Calculator

Enter the quantity of product and your Australian suburb name to calculate the shipping costs for multiples of this item only. You can calculate the shipping costs for your entire order, including international orders, on the Cart Page.

Free Shipping Eligibility

Aqua Gardening offers free shipping on most orders above $249 that are not bulky items.  Once you place all the items you wish to buy in the cart, the combined shipping price will be shown in the cart, including Free Shipping if you are eligible. For full details please see our free shipping eligibility here.

Delivery Information

Back Order products

These are products we usually carry in stock but are temporary out of stock. These products will be back in stock within a few days. We can send you an email notification when they are back in stock if you click on the “Notify me when back in stock” link. See the full details here.

Click & Collect Only products

These products can only be collected from our Brisbane showroom as we can not ship them. If you place any of these products in your cart, you will only see the Click & Collect option at the checkout.

Fast Dispatch products

These are products that we have in stock in our Brisbane showroom, and they are available for immediate Click & Collect or Shipping. Keep in mind that if you have a product which is not listed as a Fast Dispatch product in your cart, there might be a delay on your order. See the full details here.

Special Order products

Special Order products are products that we do not regularly stock. These products will be ordered specially for you, or dispatched directly to you from our supplier. See the full details here.

Ship-To-Store products

Products marked with ship-to-store can still be shipped to us to collect in-store! Simply check out with the shipping address: 3/4 Billabong Street, Stafford, QLD, 4053. Once your order arrives, we’ll email you to let you know that it is ready to collect.


Limited Warranty - This product has been stored in a controlled environment to ensure you will receive the best quality product possible. Due to this reason this product is sold on a strict no refund or return policy, unless it falls under a warranty claim.


60 Day Returns - Not available for this product, please contact us if you have any issues. More details...