SUPERthrive Mag-Pro Nutritional Supplement 2-15-4 | 1gal - (Case of 4)

Phosphorus, Magnesium, and Sulfur Booster for Existing Feed Programs, 1gal

Reverse osmosis, rain, and deionized water strip out the calcium, magnesium, and other minerals that tap water usually carries, which can leave an otherwise complete feeding program short on a few key secondary nutrients right when flowers or fruit are forming. SUPERthrive Mag-Pro 2-15-4 is designed to layer onto any existing complete nutrient formula, adding concentrated phosphorus, magnesium, and sulfur rather than replacing the base feed.

The 1gal size, sold as a case of 4, suits growers running a full feeding program across many containers who want a larger on-hand supply.

Key Features & Benefits

• NPK 2-15-4 formula — concentrated phosphorus, magnesium, and sulfur meant to layer onto an existing feed.
• Blossom-booster role — used alongside a complete nutrition formula rather than as a standalone base feed.
• Suited to purified water setups — addresses the secondary nutrients that reverse osmosis, rain, or deionized water don't carry.
• Supports color, fragrance, and size — targeted at flower, fruit, and vegetable crops during the stages those traits develop.
• Liquid concentrate format — mixes directly into an existing feeding solution without a separate application step.

Who Should Use Mag-Pro 2-15-4

This supplement fits growers running reverse osmosis, rain, or deionized water systems who want to fill the secondary-nutrient gap that purified water leaves in an otherwise complete feeding program.

About Dyna-Gro Nutrition Solutions

Dyna-Gro Nutrition Solutions markets Mag-Pro as a companion product to its core Grow, Bloom, and Foliage-Pro concentrates rather than a standalone feed. The company's broader positioning centers on supplying growers with a compact set of concentrated formulas instead of a long list of single-nutrient additives.

Frequently Asked Questions

Do I still need a complete base nutrient if I use Mag-Pro?

Yes, Mag-Pro is designed to be used alongside a complete nutrition formula, not in place of one. It supplies extra phosphorus, magnesium, and sulfur on top of whatever base feed you're already running.

Why would reverse osmosis or deionized water create a need for this supplement?

Reverse osmosis and deionized water filtration remove the dissolved minerals, including calcium and magnesium, that ordinary tap water carries along with it. Growers using purified water sources are more likely to run short on those secondary nutrients unless something like Mag-Pro fills the gap.

What crops benefit most from Mag-Pro?

It's positioned for flowers, fruiting crops, and many vegetable crops during the stages when color, fragrance, and size are developing. Foliage-only plants that aren't flowering or fruiting generally have less use for a blossom-focused supplement like this.

How does the NPK ratio break down?

The 2-15-4 ratio is 2% nitrogen, 15% phosphorus, and 4% potassium, weighted heavily toward phosphorus along with its magnesium and sulfur content. That weighting is why it functions as a booster rather than a complete standalone feed.

Can I use Mag-Pro with any brand of base nutrient?

It's designed to pair with any complete nutrition formula, not exclusively Dyna-Gro's own Grow, Bloom, or Foliage-Pro concentrates. As with any additive, introduce it gradually and watch plant response the first time you pair it with an unfamiliar base feed.