General Hydroponics CALiMAGic Quart — Liquid Calcium & Magnesium Concentrate, 1-0-0 for Hydroponics and Foliar Use

CALiMAGic Quart from General Hydroponics is a concentrated liquid source of readily available calcium and magnesium designed to prevent secondary deficiencies and support vigorous growth in calcium-demanding plants.

When fast-growing vegetables, ornamentals or greenhouse crops stretch rapidly, they can exhaust available calcium and magnesium, leading to tip burn, blossom end rot or slowed development. CALiMAGic™ is formulated to supply both elements in a stable, soluble form that mixes easily into reservoirs, fertigation lines or foliar sprays. It complements balanced feed programs without clogging emitters and is compatible with many nutrient solutions when used as directed.

How does CALiMAGic help fast-growing plants?

CALiMAGic supplies calcium and magnesium in forms plants can take up quickly, which helps avoid nutrient imbalances that appear during rapid growth. Providing these elements proactively reduces the chance of tissue disorders and supports steady development.

• Concentrated 1-0-0 formula delivers calcium and magnesium efficiently
• Helps prevent blossom end rot in fruiting crops like tomatoes
• Reduces tip burn and leaf edge symptoms in leafy greens such as lettuce
• Designed for use in reservoirs, hydroponic systems, or foliar applications

Can I add CALiMAGic to my hydroponic reservoir or irrigation lines?

Yes—CALiMAGic was made to integrate with many fertilizer regimens and irrigation setups. It’s water-soluble and formulated to avoid clogging drip emitters and spray lines when mixed properly.

• Mixes readily into nutrient solutions; follow dilution directions on the label
• Compatible with many fertilizers but always test small volumes when combining products
• Won’t clog emitters or spray nozzles under normal use
• Suitable for continuous reservoir feeding or periodic top-ups

How do I use CALiMAGic for foliar and root applications?

CALiMAGic can be applied as a foliar spray for quick uptake or added to the root zone for sustained supply. Use recommended rates from General Hydroponics and adjust frequency based on crop stage and tissue tests.

• Foliar: dilute per label guidance for safe leaf application and spray during cooler parts of the day
• Root/reservoir: add to nutrient solution at recommended concentration and monitor EC/pH
• Use regularly during peak vegetative and early fruiting stages for best effect
• Combine with balanced NPK programs; avoid overdosing calcium without checking other nutrients

Will CALiMAGic affect my nutrient balance or pH?

CALiMAGic provides calcium and magnesium without a large nitrogen load (NPK 1-0-0), so it’s useful for addressing specific deficiencies without drastically changing fertilizer ratios. As with any additive, monitor solution parameters after application.

• Low nitrogen content limits shifts in overall NPK balance
• Monitor electrical conductivity (EC) and pH after adding to reservoirs
• Perform periodic tissue or solution tests to guide dosing frequency
• Follow label compatibility notes when mixing with other supplements

Who is this for: Growers who want a dependable, concentrated calcium and magnesium supplement for hydroponics, greenhouse or soil-less systems will benefit from CALiMAGic Quart. It’s aimed at hobbyists and commercial growers who need to prevent calcium-related disorders in tomatoes, lettuce, peppers and other calcium-intensive crops, and who require a product that mixes easily into irrigation systems without clogging lines. If you monitor nutrient solutions, adjust feeds based on crop stage, and want a targeted solution to reduce blossom end rot and tip burn, CALiMAGic is a practical addition to your feeding program.