• Next-Day UK Delivery
• Professional Calcium & Magnesium Supplement
• Suitable for Soil, Coco & Hydroponic Systems
• Prevents & Corrects Calcium Deficiencies
• Helps Eliminate Magnesium Deficiency Symptoms
• Contains Plant-Available Calcium & Magnesium
• Enhanced With Humic Acids & Amino Acids
• Supports Stronger Plant Structure & Health
• Improves Nutrient Uptake Efficiency
• Ideal for Fast-Growing Plants & Heavy Feeders
• Works Perfectly Alongside Ionic Nutrient Ranges
• Stable, Easy-to-Mix Liquid Formula
• Professional Secondary Nutrient Technology

Plants Are Surprisingly Good At Running Out Of Important Things.

At first, everything seems perfectly healthy.

Leaves green.
Growth steady.
Roots behaving themselves.
Entire garden looking wonderfully competent.

And then, usually at the exact moment growth accelerates properly, the deficiencies begin.

Tiny brown spots appear.
Leaves yellow between veins.
Growth slows mysteriously.
New foliage looks weak and faintly offended.

Which is precisely why Ionic Cal-Mag Pro exists.

Because modern fast-growing plants consume astonishing amounts of calcium and magnesium once growth rates increase.

Especially in:

• Coco coir
• Hydroponic systems
• Fast-draining media
• Heavy feeding programmes
• High-potassium bloom schedules

And once deficiencies appear, plants waste absolutely no time making their disappointment visible.

Calcium & Magnesium: The Two Nutrients Quietly Holding Everything Together.

Now admittedly, calcium and magnesium sound faintly boring compared to dramatic bloom boosters with names resembling energy drinks.

But these secondary nutrients are doing extraordinary amounts of work behind the scenes.

Calcium supports:

• Cell wall strength
• Root development
• Structural integrity
• Water movement
• Tissue formation

Magnesium supports:

• Chlorophyll production
• Photosynthesis
• Enzyme activation
• Energy transfer
• Healthy leaf colouration

Without enough calcium and magnesium, plants essentially begin malfunctioning slowly from the inside out.

And unfortunately, the symptoms usually arrive just as growth becomes most important.

Coco Coir Absolutely Loves Stealing Calcium.

This is where Ionic Cal-Mag Pro becomes especially useful.

Because coco coir has a deeply irritating habit:

It binds calcium.

Meaning the nutrient exists… but the plant cannot access it properly.

Which explains why coco-grown plants often develop:

• Rust spots
• Weak stems
• Interveinal yellowing
• Slow development
• Twisted new growth

even when growers are feeding correctly.

Ionic Cal-Mag Pro compensates for this beautifully by supplying readily available calcium and magnesium directly into the feeding programme.

Which means plants stop behaving like nutritionally confused Victorian houseplants.

PK Boosters Create Another Problem Entirely.

One of the fascinating things about aggressive flowering schedules is how quickly potassium levels can interfere with calcium and magnesium uptake.

High potassium levels — particularly when using PK boosters — can trigger nutrient lockout.

Suddenly:

• Calcium uptake drops
• Magnesium absorption slows
• Leaves begin yellowing
• Brown spotting develops
• Growth quality declines

And growers often assume the solution is “more bloom nutrients”.

Which is roughly equivalent to solving dehydration with soy sauce.

Ionic Cal-Mag Pro restores balance by replenishing these critical secondary nutrients before deficiencies spiral properly out of control.

More Than Just Calcium & Magnesium.

One of the genuinely impressive things about Ionic Cal-Mag Pro is the formulation itself.

Because it does not simply throw calcium and magnesium into water and hope for the best.

The formula also includes:

• Plant-available nitrogen (N)
• Iron (Fe)
• Amino acids
• Humic acids
• Complex organic plant extracts

Which creates a much more effective nutrient support system overall.

The humic acids are particularly important.

Because they help break larger nutrient compounds into smaller, more plant-accessible forms.

This improves:

• Nutrient absorption efficiency
• Root uptake performance
• Existing nutrient availability inside the substrate
• Overall feeding effectiveness

Meaning the plant often begins using all nutrients more efficiently — not just the calcium and magnesium.