Botanicare Cal-Mag Plus 2-0-0 | 2.5gal

A Season-Long Calcium and Magnesium Supply

Botanicare Cal-Mag Plus 2-0-0 is a liquid plant supplement formulated with calcium, magnesium, and iron to correct deficiencies that show up most often when growing with reverse osmosis water or in coco coir media.

This 2.5gal size keeps a steady supply on hand for routine reservoir feeding or foliar spraying throughout the growing cycle.

Key Features & Benefits

• Calcium and Magnesium Supply — Supplies calcium and magnesium in a readily available liquid form.
• Iron-Fortified Formula — Adds iron to help support chlorophyll and enzyme activity.
• RO Water & Coco Coir Friendly — Formulated for growers using reverse osmosis water or coco coir media, where these elements are often lacking.
• Reservoir or Foliar Use — Mix into the nutrient reservoir or apply directly as a foliar spray.

Who Should Use Cal-Mag Plus

Cal-Mag Plus suits growers using reverse osmosis water or coco coir media, where calcium, magnesium, and iron levels can run low and lead to visible deficiency symptoms.

Why These Nutrients Matter

Calcium supports strong cell walls, magnesium is central to chlorophyll production and energy transfer, and iron plays a role in chlorophyll synthesis and enzyme function — making all three easy to spot when they run short.

Frequently Asked Questions

What does Cal-Mag Plus correct?

It is formulated to correct calcium, magnesium, and iron deficiencies, which are common with reverse osmosis water or coco coir media.

What is the nutrient ratio?

Cal-Mag Plus carries a 2-0-0 ratio, supplying calcium, magnesium, and iron rather than primary NPK nutrients.

How is it applied?

Mix it into the nutrient reservoir or apply it directly as a foliar spray.

Why do RO water and coco coir growers need this?

Both reverse osmosis water and coco coir media naturally contain less calcium and magnesium than other sources, making supplementation more important.

What size is this listing?

This listing is the 2.5gal size.