Mad Farmer Cal+Mag
Best nutrient supplement for growers using coco coir or purified water.
This is the essential insurance policy for coco coir growers and those using RO water. By stripping away unnecessary dyes, it focuses entirely on preventing common deficiencies, giving you a clean, reliable way to ensure your plants reach their full, vigorous potential without complicating your existing nutrient regimen.
$115.70
at
Simply Hydroponics (SimplyHydro)
Who it's for
- Botanists aiming for maximum chlorophyll production and nutrient absorption
- Gardeners needing immediate solutions for yellowing or stunted plants
- Budget-conscious growers seeking a potent, long-lasting nutrient supplement
Who should skip it
- Novice gardeners prone to over-fertilizing their sensitive crops
- Beginners who prefer a low-maintenance, set-it-and-forget-it feeding routine
- Busy growers wanting a simple, all-in-one mixing process
Performance breakdown
Nutrient Bioavailability
Rapidly corrects deficiencies with highly accessible calcium and magnesium ions.
Medium Compatibility
Essential for stabilizing coco coir and RO water nutrient profiles.
Formula Purity
Dye-free composition keeps your reservoir clean and visual monitoring simple.
Application Versatility
Seamlessly transitions between root zone feeding and direct foliar application.
Concentration Efficiency
High-potency liquid requires minimal volume for effective nutrient supplementation.
System Integration
Neutral chemistry ensures zero conflict with existing base nutrient programs.
Key Specs
Package Weight
23.6 lbs
Form
Liquid Concentrate
Application Volume
1-15 mL per gallon (feeding)
Foliar Application Rate
5 mL per quart
Fertilizer Source
Synthetic
Application Method
Foliar Spray
Season of Application
All Season
Water Soluble
true
Target Plant Type
Lawn, Vegetables, Flowers, Trees and Shrubs, Houseplants
Fertilizer Form
Liquid Concentrate
Know before you buy
Still have a question?
Ask Metto anything about the Mad Farmer Cal+Mag before you decide.
