---
product_id: 638674189
title: "Cal+Mag+Iron (2-0-0), 32oz Calcium, Magnesium & Iron Supplement | Liquid Nutrient Fertilizer for All Plants, Concentrated Plant Food for Soil/Soilless Cultivation, Hydroponics"
brand: "vivosun"
price: "€ 93.13"
currency: EUR
in_stock: true
reviews_count: 8
category: "Vivosun"
url: https://www.desertcart.hr/products/638674189-cal-mag-iron-2-0-0-32oz-calcium-magnesium-iron
store_origin: HR
region: Croatia
---

# Balanced Ca+Mg+Fe formula for robust plant growth 100% water-soluble for rapid nutrient delivery Concentrated 32oz liquid covers 56 sq ft efficiently Cal+Mag+Iron (2-0-0), 32oz Calcium, Magnesium & Iron Supplement | Liquid Nutrient Fertilizer for All Plants, Concentrated Plant Food for Soil/Soilless Cultivation, Hydroponics

**Brand:** vivosun
**Price:** € 93.13
**Availability:** ✅ In Stock

## Summary

> 🌿 Feed your plants like a pro — watch your garden thrive and your neighbors envy!

## Quick Answers

- **What is this?** Cal+Mag+Iron (2-0-0), 32oz Calcium, Magnesium & Iron Supplement | Liquid Nutrient Fertilizer for All Plants, Concentrated Plant Food for Soil/Soilless Cultivation, Hydroponics by vivosun
- **How much does it cost?** € 93.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/638674189-cal-mag-iron-2-0-0-32oz-calcium-magnesium-iron)

## Best For

- vivosun enthusiasts

## Why This Product

- Trusted vivosun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Nutrient Synergy:** Boosts absorption of other nutrients for maximum yield
- • **Deficiency Defense:** Prevents blossom end rot, chlorosis & leaf issues for healthier plants
- • **Effortless Application:** Liquid concentrate easily integrates into any watering routine
- • **Universal Compatibility:** Works seamlessly with soil, hydroponics, coco coir & more
- • **Optimized Growth Formula:** Calcium, magnesium, iron & nitrogen power photosynthesis & fruiting

## Overview

VIVOSUN Cal+Mag+Iron (2-0-0) is a premium 32oz liquid fertilizer designed to prevent common nutrient deficiencies by delivering essential calcium, magnesium, and iron. Fully water-soluble and compatible with all growing mediums including hydroponics and soil, this concentrated formula enhances nutrient uptake and supports vigorous plant growth, fruit development, and overall plant health across all indoor and outdoor setups.

## Description

desertcart.com : VIVOSUN Cal+Mag+Iron (2-0-0), 32oz Calcium, Magnesium & Iron Supplement | Liquid Nutrient Fertilizer for All Plants, Concentrated Plant Food for Soil/Soilless Cultivation, Hydroponics : Patio, Lawn & Garden

Review: Top-of-the-line nutrients - Highly recommended it’s all I use it grows along with my grow tents awesome product
Review: Saved my jalapenos from blossom end rot - I started growing jalapenos for the first time in 2025 and many started out with blossom end rot and I thought I was going to lose a lot of the future harvest. I did some research and found this product that helped keep them healthy. I ended up harvesting well over 1000 jalapenos from about 20 plants. I liked this one because it's a liquid and can easily mix into my watering regime. Others I found were like granules/pellets and I felt would not be as effective. I still have a lot left over and will absolutely purchase more when I run out. Keep your harvest healthy!

## Features

- Prevent & Correct Deficiencies: Nourish your plants with essential nutrients like calcium, magnesium, and iron to prevent and correct common deficiencies such as blossom end rot, interveinal chlorosis, stunted growth, leaf curling or cupping, and leaf brittleness
- Premium Ingredients: This well-balanced formula is enriched with calcium, magnesium, iron, and nitrogen - all key elements for efficient photosynthesis, robust growth, and fruit development; It is formulated to optimize plant growth and maximize yields
- Compatible With All Growing Mediums: This 100% water-soluble liquid fertilizer is ideal for hydroponics, aeroponics, coco coir, DWC (deep water culture), soil, and any other growing medium or system; It is especially suitable for coco coir and reverse osmosis water cultivation, where calcium and magnesium deficiencies are common
- Compatible with Other Nutrients: This versatile additive is fully compatible with other nutrient systems; It can also enhance the plants’ ability to absorb other essential nutrients, optimizing overall nutrient uptake and efficiency
- Easy to Use: This concentrated formula is easy to use at all growth stages for all indoor and outdoor plants; It can be used as a standalone additive or combined with others; Experiment with the dosage to find the optimal amount for your specific setup and plant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CT8BGPYP |
| Best Sellers Rank | #46,641 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,216 in Garden Fertilizers |
| Brand | VIVOSUN |
| Brand Name | VIVOSUN |
| Coverage | 56 square feet |
| Customer Reviews | 4.7 out of 5 stars 131 Reviews |
| Included Components | Cal |
| Item Form | Liquid |
| Item Weight | 2.6 pounds |
| Liquid Volume | 1 quarts |
| Manufacturer | VIVOSUN |
| Model Number | VSN-CAMGIR32 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 1 |
| Specific Uses For Product | Plant Growth |
| Target Species | all plants |
| Unit Count | 32 Fluid Ounces |

## Product Details

- **Brand:** VIVOSUN
- **Item Form:** Liquid
- **Item Weight:** 2.6 Pounds
- **Liquid Volume:** 1 Quarts
- **Specific Uses For Product:** Plant Growth

## Images

![Cal+Mag+Iron (2-0-0), 32oz Calcium, Magnesium & Iron Supplement | Liquid Nutrient Fertilizer for All Plants, Concentrated Plant Food for Soil/Soilless Cultivation, Hydroponics - Image 1](https://m.media-amazon.com/images/I/51UP71ysrTL.jpg)

## Questions & Answers

**Q: What are the benefits of Cal+Mag+Iron?**
A: Cal+Mag+Iron provides a precise balance of calcium, magnesium, and iron, specifically formulated to address potential deficiencies.

**Q: Can Cal+Mag+Iron be used with other additives?**
A: Yes, Cal+Mag+Iron can be used in combination with other nutrient systems.

**Q: Why do I need this if I'm using coco substrate?**
A: Coco coir naturally absorbs calcium and magnesium, making them unavailable to plants. Using Vivosun Cal+Mag+Iron prevents these deficiencies.

**Q: Should Cal+Mag+Iron be used on the soil or sprayed on the plant?**
A: Cal+Mag+Iron can be applied both as a soil drench and as a foliar spray.

**Q: What kinds of growing mediums can Cal+Mag+Iron be used in?**
A: Vivosun Nutrients Cal+Mag+Iron is suitable for all growing mediums, including potting soil, hydroponics, aquaponics, and coco coir cultivation.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Top-of-the-line nutrients
*by T***N on May 12, 2026*

Highly recommended it’s all I use it grows along with my grow tents awesome product

### ⭐⭐⭐⭐⭐ Saved my jalapenos from blossom end rot
*by B***T on March 4, 2026*

I started growing jalapenos for the first time in 2025 and many started out with blossom end rot and I thought I was going to lose a lot of the future harvest. I did some research and found this product that helped keep them healthy. I ended up harvesting well over 1000 jalapenos from about 20 plants. I liked this one because it's a liquid and can easily mix into my watering regime. Others I found were like granules/pellets and I felt would not be as effective. I still have a lot left over and will absolutely purchase more when I run out. Keep your harvest healthy!

### ⭐⭐⭐⭐⭐ Great for plants
*by M***L on April 21, 2026*

Great stuff, lasts for ever. Only use every 2 to 4 months on my plants so it will def last .

## Frequently Bought Together

- VIVOSUN Cal+Mag+Iron (2-0-0), Calcium, Magnesium & Iron Supplement, Liquid Nutrient Fertilizer for All Plants, Concentrated Plant Food for Soil/Soilless Cultivation, Hydroponics, 1 Quart
- VIVOSUN Plant Food Nutrients Base A(4-0-1) & B(1-4-2) Bundle, All Purpose Liquid Fertilizer, Hydroponic Plant Food Supports Vegetative and Flowering Stages for Outdoor & Indoor Plants, Set of Quarts
- VIVOSUN Seaweed and Kelp Fertilizer, Concentrated Plant Additive NutriBoost (0-0-1), All-Purpose Liquid Food for All Growing Stages, for Trees, Vegetables, Flowers, Fruits, Lawn, 32 Ounces/1 Quart

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**Shop now:** [https://www.desertcart.hr/products/638674189-cal-mag-iron-2-0-0-32oz-calcium-magnesium-iron](https://www.desertcart.hr/products/638674189-cal-mag-iron-2-0-0-32oz-calcium-magnesium-iron)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-25*