Terra Aquatica Calcium Magnesium
The Missing
Link.
A highly bioavailable calcium/magnesium blend. Essential for growers using RO water, coco coir, or high-intensity LEDs. Prevents structure failure and nutrient lockout.
A Tale of Two Leaves
Calcium and Magnesium are "macronutrients." Plants need them in large quantities to build cell walls and create energy.
Deficient
Rust Spots
Lack of Calcium causes cell walls to collapse, creating brown "rust" spots on leaves and stunted new growth.
Yellowing (Chlorosis)
Lack of Magnesium stops chlorophyll production. Leaves turn pale yellow between the veins (interveinal chlorosis).
With CalMag
Strong Structure
Calcium cements cell walls together, creating thick stems and crisp leaves that can support heavy fruit weight.
Photosynthetic Engine
Magnesium is the central atom of the chlorophyll molecule. More Mg means more green pigment and more energy from light.
When You Need It Most
Some environments and plants demand extra Calcium and Magnesium.
RO / Soft Water
The Issue: Zero Minerals.
Reverse Osmosis water filters out natural calcium. You MUST add CalMag to re-mineralize the water to 0.4 EC.
LED Lighting
The Issue: High Metabolism.
Intense LEDs drive photosynthesis faster than traditional lights, increasing the plant's demand for Magnesium significantly.
Coco Coir
The Issue: Cation Exchange.
Coco naturally chemically bonds with Calcium, stealing it from the plant. You must saturate the coco with CalMag to prevent lockout.
Tomatoes & Peppers
The Issue: Blossom End Rot.
Black spots on the bottom of fruit are caused by calcium deficiency. Regular CalMag supplementation eliminates this ruinous disease.
Pure & Soluble
Terra Aquatica CalMag provides a clean, fully soluble source of Calcium and Magnesium that won't clog drippers or settle in your tank.
Hydroponics
Add first! Always add CalMag to your water before adding your base nutrients to prevent chemical reactions (precipitation).
Buffering
Helps stabilize pH swings in hydroponic reservoirs by increasing the buffering capacity (alkalinity) of the water.
Water Type Matters
Dosage Calculator
Adjust based on your water source.
Application Guide
RO Water (Reverse Osmosis)
1.5ml - 2ml per Liter. Essential for RO users. Bring your water EC up to ~0.4 before adding any other fertilizers.
Coco Coir
1.5ml per Liter. Use with every watering to saturate the cation exchange sites, preventing the coco from stealing Calcium from your plants.
Tap Water / Maintenance
0.5ml - 1ml per Liter. If using tap water, you likely have some calcium already. Use a lower dose just to boost Magnesium levels.
Build Stronger Plants
The difference between a good crop and a great one often comes down to the foundation.
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