General Hydroponics CALiMAGic 1-0-0 - 2.5gal

Cal-Mag Supplement for Blossom End Rot and Tip Burn, 2.5gal

General Hydroponics CALiMAGic 1-0-0 is a concentrated calcium-magnesium supplement for fast-growing plants. Calcium and magnesium are secondary nutrients that are frequently depleted in hydroponic reservoirs and light media such as coco coir, where they must be supplied through the nutrient solution.

The 2.5gal concentrate is designed for operations that apply cal-mag supplementation consistently throughout the grow cycle and need a volume beyond a single gallon.

Key Features & Benefits

• 1-0-0 NPK / Calcium + Magnesium — Supplies both calcium and magnesium in a single liquid concentrate compatible with any nutrient program.
• Prevents Blossom End Rot — Calcium deficiency is the primary cause of blossom end rot in tomatoes and fruiting crops — regular CALiMAGic application corrects this deficiency.
• Prevents Tip Burn — Calcium plays a critical role in new cell formation; deficiencies appear as tip burn in leafy crops, lettuce, and herbs.
• Corrects Interveinal Chlorosis — Magnesium is the central atom of the chlorophyll molecule; deficiency causes yellowing between leaf veins, reducing photosynthetic output.
• Hydroponic and Soil Compatible — Liquid concentrate mixes fully with water for use in hydroponic reservoirs, drip systems, and soil irrigation.

Who Should Use CALiMAGic

General Hydroponics CALiMAGic 1-0-0 is suited to growers using hydroponic systems, coco coir, or other light growing media where calcium and magnesium are not naturally present in the substrate. It is particularly valuable for fast-growing crops like tomatoes, peppers, cucumbers, and leafy greens, which rapidly deplete secondary nutrients from the root zone.

Application Notes

Shake well before use. Add CALiMAGic to water before introducing other nutrients. For hydroponic use, add to the reservoir and adjust pH after mixing. For soil and container use, apply as a root drench at regular feeding intervals. Refer to the GH feeding schedule for dose rates by crop type and growth stage.

Frequently Asked Questions

When should I use CALiMAGic?

Use CALiMAGic throughout the grow cycle whenever plants are in a medium that doesn't supply calcium and magnesium, such as hydroponics or coco coir. It can also be used in soil when deficiency symptoms appear.

Can I use CALiMAGic as a foliar spray?

CALiMAGic is primarily designed for root-zone application. For foliar calcium correction, consult the General Hydroponics feeding schedule for appropriate products and dilution rates.

What does calcium deficiency look like?

Calcium deficiency typically shows as blossom end rot in fruiting crops, tip burn in leafy greens, and curled or distorted new growth. Regular CALiMAGic application prevents these symptoms before they appear.

What does magnesium deficiency look like?

Magnesium deficiency presents as interveinal chlorosis — yellowing between the veins of older leaves while the veins remain green. It is common in fast-growing crops and in media where magnesium is not supplemented.

Is CALiMAGic compatible with other GH nutrients?

Yes. CALiMAGic is designed to be used alongside other General Hydroponics nutrients. Add it to your solution before other ingredients for even mixing.