Check pricing on

A potent blend of calcium (Ca) and magnesium (Mg). General Hydroponics CALiMAGic (1-0-0) is a mineral-based supplement designed to optimize plant nutrition by preventing nutrient deficiencies in fast growing annual plants. Use with your existing feeding program to help make plants stronger and more productive!

• Fully soluble — will NOT clog drip emitters or spray lines!
• Prevents tip burn and blossom end rot in Ca intensive plants
• Safe to use in reservoirs with other nutrients
• Designed for use with all hydroponic systems and media
• The most innovative Ca-Mg supplement on the market today!

Available in quart, gallon, 2.5 gallon and 6 gallon sizes.

Use 1 tsp per gallon (1 ml/ liter) of water for most applications.

Grower’s Tip:
When growing in coconut coir or using prepared soil/ soilless mixes add 1 tsp per gallon to wet the media and to nutrient solution for the first two weeks. Continuous use may be helpful for fast growing annuals.

Affiliate Disclosure: As an Amazon Associate we earn from qualifying purchases. Some links may be affiliate links. We may get paid if you buy something or take an action after clicking one of these links.