Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage – 1 Gallon

Compare price from $11.99 ~ $78.77

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Amazon Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage	$11.99	$6.99 delivery

Amazon Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage – 1 Quart	$19.97	Delivery date & cost shown at checkout

Amazon Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage	$42.98	Delivery date & cost shown at checkout

Amazon Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage – 1 Gallon	$42.98	Delivery date & cost shown at checkout

friendlygrow.com Humboldts Secret Calcium, Magnesium and Iron Supplement	$16.00	Delivery date & cost shown at checkout

Sustainable Hydroponics Humboldts Secret Calcium, Magnesium & Iron - Liquid Nutrient/Fertilizer Fo	$22.06	$24.67 delivery 30-day returns

eBay Humboldts Secret Calcium, Magnesium & Iron - Liquid Nutrient/Fertilizer Fo	$26.99	Free delivery by Thu, Dec 14

eBay Humboldts Secret Calcium, Magnesium & Iron Supplement Liquid Nutrient Fertilizer	$28.80	Delivery date & cost shown at checkout

eBay Humboldts Secret Calcium, Magnesium and Iron Supplement 1 Gallon	$59.99	Delivery date & cost shown at checkout

firewaterearthwind.com Humboldts Secret Calcium, Magnesium and Iron Supplement	$53.48	Delivery date & cost shown at checkout

ibspot Humboldts Secret CalMag with Iron Liquid Fertilizer / Nutrient 1 Gallon	$78.77	Free delivery by Thu, Oct 31

11.99
Amazon
Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage
$6.99 delivery
19.97
Amazon
Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage – 1 Quart
Delivery date & cost shown at checkout
42.98
Amazon
Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage
Delivery date & cost shown at checkout
42.98
Amazon
Humboldts Secret Calcium, Magnesium and Iron Supplement – Hydroponic Supplies – Liquid Nutrient Fertilizer – Supports Vegetative and Flowering Stage – 1 Gallon
Delivery date & cost shown at checkout
16.00
friendlygrow.com
Humboldts Secret Calcium, Magnesium and Iron Supplement
Delivery date & cost shown at checkout
22.06
Sustainable Hydroponics
Humboldts Secret Calcium, Magnesium & Iron - Liquid Nutrient/Fertilizer Fo
$24.67 delivery 30-day returns
26.99
eBay
Humboldts Secret Calcium, Magnesium & Iron - Liquid Nutrient/Fertilizer Fo
Free delivery by Thu, Dec 14
28.80
eBay
Humboldts Secret Calcium, Magnesium & Iron Supplement Liquid Nutrient Fertilizer
Delivery date & cost shown at checkout
59.99
eBay
Humboldts Secret Calcium, Magnesium and Iron Supplement 1 Gallon
Delivery date & cost shown at checkout
53.48
firewaterearthwind.com
Humboldts Secret Calcium, Magnesium and Iron Supplement
Delivery date & cost shown at checkout
78.77
ibspot
Humboldts Secret CalMag with Iron Liquid Fertilizer / Nutrient 1 Gallon
Free delivery by Thu, Oct 31

Product Details

SOURCE OF CALCIUM MAGNESIUM & CHELATED IRON: Many varieties of flowering plants require higher levels of these micronutrients. Our well-balanced formula is designed to specifically address any plant deficiencies that may be present. CORRECTS COMMON PLANT DEFICIENCIES: Sometimes an unhealthy plant may be suffering from a nutrient deficiency or even too much of one nutrient. Our CalMag & Iron supplement effectively corrects and remedies these micronutrient plant deficiencies. NUTRIENT UPTAKE AND ABSORPTION: This formulae efficiently supports nutrient uptake and absorption by addressing any plant deficiencies in the first place, thus successfully supporting the vegetative and flowering stage of your plants. SUITABLE FOR HYDROPONICS, SOIL, AND CONTAINER GARDENS: Nutrient systems and supplements are commonly used as hydroponic supplies and are a good solution for soil and container gardens, ensuring strong and healthy plants and yields. OPTIMAL FOR COCO COIR MEDIUM AND REVERSE OSMOSIS WATER: Our supplemental CalMag & Iron by Humboldts Secret is highly recommended for plants growing in coco substrate or reverse osmosis water, as the absorption process becomes magnified.

Best Review

Sweeney23912024-11-08

4.6

Customers like the effectiveness, value for money, and ease of use of the fertilizer. They mention it works well for introducing elements to raw coco fiber, keeps their plants healthy, and is well worth the price. Some also like its efficiency and nutrients. However, some customers are disappointed with the bottle leakage and have mixed opinions on the quality.

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