Is there nitrogen in this? It would be helpful for the seller to post the bottle back side label.

Hey there, good idea on posting the labels, adding that to my to-do list! To answer your question, yes there is Nitrogen. Here is the guaranteed analysis of nutrient content on our Cal-Mag. Total Nitrogen 2%, 2% Nitrate Nitrogen, Calcium 2%, Magnesium 0.6%, Boron .002%, Copper .003%, iron .004%, Manganese .004%, Zinc .004%. Derived from: Calcium Nitrate, Magnesium Nitrate, Boric Acid, Copper Sulfate, Ferric Sulfate, Manganese Sulfate, Zinc Sulfate. Hope that helps! James - Bloom City Crew

Site says it is compatible with all growth mediums, but bottle says for hydroponic use ONLY. Which is it?

That terminology on the bottle is unfortunately a labeling requirement placed on us by regulators. It is compatible with all growing mediums, including soil, cocoa coir, peat, hydroponic systems, etc. Thanks, James - Bloom City Crew

Can this be mixed with epsom salt for additional magnesium as a foliar spray or added as a root drench?

Hi, Great question. It can be added to epsom salt in a water solution, however we suggest you try this Cal-Mag first on the plants - its probably more than enough magnesium. We use highly bio-available mineral forms and add organic acids to the product to increase uptake. Its also great as both a foliar spray and a root drench! Let us know how the plants grow!

What would be the salt in ppm per dose added to ro or distilled water?

Hi, thanks for the question! The PPM added would be about 120 for the low dose of 2ml per gallon, and 240 for the high dose of 4ml per gallon. Let us know if you have any other questions! James - Bloom City Crew

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Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer,Gallon (128 oz)

Product ID: 48892108

Details

Brand
Bloom City
Item Form
Liquid
Liquid Volume
1 Gallons
Manufacturer
Bloom City
Number of Packs
1

🌱Optimized Cal-Mag ratio for vigorous growth

🏡Versatile for soil & hydroponic systems

💧128 oz ultra-pure liquid formula

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MX$2790

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Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Elevate your garden game with Bloom City’s Cal-Mag UltraPure!

PURE POWER BOOST - Ultra-pure calcium and magnesium for peak plant vitality
PROUDLY MADE IN USA - Quality you can count on, grown with care and precision
GROWTH YOU CAN TRUST - Supports sturdy stems and lush foliage for professional-grade results
ALL IN ONE VERSATILITY - Perfectly formulated for indoor, outdoor, and hydroponic setups
MAXIMIZED NUTRIENT ABSORPTION - Enhances uptake efficiency to supercharge your garden’s health

Bloom City Professional Grade Ultra Pure Cal-Mag Fertilizer delivers a potent 128 oz liquid formula designed to supply essential calcium and magnesium for robust plant growth. Ideal for soil and hydroponic systems, it enhances nutrient uptake and supports strong plant structure, making it a top choice for indoor and outdoor gardening enthusiasts seeking professional results.

Specifications

ASIN	B073ZP47ZN
Best Sellers Rank	#1,218 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #65 in Garden Fertilizers
Brand Name	Bloom City
Coverage	Full
Customer Reviews	4.6 4.6 out of 5 stars (6,839)
Item Form	Liquid
Liquid Volume	1 Gallons
Manufacturer	Bloom City
Mixing Ratio	2-4 mL per gallon (vegetative stage), 3-5 mL per gallon (bloom)
Model Number	Cal-Mag UltraPure \| Plus Micros
Number of Items	1
Part Number	BCALMAG1G
Target Species	Houseplants, Greenhouse Plants, Edible Plants (fruits and veggies), Trees, Turf
UPC	841401125158
Unit Count	128 Ounce

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