---
product_id: 60640961
title: "Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums"
brand: "red sea"
price: "2961 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/60640961-red-sea-reef-foundation-a-ca-sr-supplement-5-l
store_origin: DK
region: Denmark
---

# Optimized for marine & reef aquariums 5L precision liquid formula Balanced Ca/Sr ratio for coral health Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums

**Brand:** red sea
**Price:** 2961 kr
**Availability:** ✅ In Stock

## Summary

> 🌊 Elevate Your Reef Game with Every Drop!

## Quick Answers

- **What is this?** Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums by red sea
- **How much does it cost?** 2961 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/60640961-red-sea-reef-foundation-a-ca-sr-supplement-5-l)

## Best For

- red sea enthusiasts

## Why This Product

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

## Key Features

- • **Boost Coral Vitality:** Premium Calcium & Strontium blend fuels vibrant, healthy coral growth.
- • **Trusted by Reef Enthusiasts:** Highly rated with 4.8 stars, a go-to choice for serious marine aquarium keepers.
- • **Scientifically Tested Safety:** Formulated and tested to ensure a safe, thriving reef environment.
- • **Easy-to-Use Liquid Supplement:** 5-liter liquid concentrate designed for hassle-free dosing and consistent results.
- • **Enhance Your Reef’s Ecosystem:** Supports natural mineral balance, promoting long-term coral resilience and beauty.

## Overview

Red Sea Reef Foundation A is a 5-liter liquid supplement delivering a precise Calcium and Strontium formula essential for healthy coral growth in marine and reef aquariums. Trusted by hobbyists and professionals alike, it ensures safe, balanced mineral supplementation to maintain vibrant, thriving reef ecosystems.

## Description

Calcium, Magnesium, Strontium and Carbonate are the basic foundation elements of coral skeletons.
All of these elements need to be available in balanced proportions for positive coral health and growth.
Red Sea’s CALCIUM+ contains blended salts of Calcium and Strontium in the ratio required by corals and is part of Red Sea’s complete Reef Care Program.
Foundation A - 1000 ml
Foundation A - 500 ml
Foundation A - 1000 ml
Foundation A - 5 L
Foundation A - 1kg Powder
Foundation B Alkalinity
Foundation C Magnesium
Dive deep into the captivating world of saltwater aquariums using our Industry Leading Products and Solutions.
Red Sea has over 30 years of Multidisciplinary knowledge and experience resulting in numerous innovations to the reefing world

## Features

- Quality And Performance Driven Products For Your Pet
- Tested For Safety And Health
- Provide A Better Quality Of Living For Your Pet With Red Sea
- Package Dimensions: 3.93700787401575" L X 7.8740157480315" W X 11.4173228346457" H

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B011UMNJY0 |
| Best Sellers Rank | #1,310 in Aquarium Water Treatments |
| Date First Available | July 15, 2015 |
| Item Model Number | 63322015 |
| Manufacturer | Pro-Motion Distributing - Direct |
| Product Dimensions | 5 x 2 x 4 inches; 1 pounds |

## Product Details

- **Brand:** Red Sea
- **Item Form:** Liquid
- **Item Weight:** 16 ounces
- **Liquid Volume:** 5 liters
- **Unit Count:** 1 Pack

## Images

![Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums - Image 1](https://m.media-amazon.com/images/I/71jlygSjvML.jpg)
![Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums - Image 2](https://m.media-amazon.com/images/I/51FUuu6hZEL.jpg)
![Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums - Image 3](https://m.media-amazon.com/images/I/81wICs0grEL.jpg)
![Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums - Image 4](https://m.media-amazon.com/images/I/61U8l1oSlrL.jpg)
![Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums - Image 5](https://m.media-amazon.com/images/I/719ro4kU1pL.jpg)

## Frequently Bought Together

- Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums
- Red Sea Reef Foundation B Alkalinity (KH) Supplement, 5 L - Boosts Carbonate Levels for Strong Coral Skeletons in Reef & Marine Aquariums
- Red Sea Reef Foundation C Magnesium (Mg) Supplement, 5 L - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums

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**Shop now:** [https://www.desertcart.dk/products/60640961-red-sea-reef-foundation-a-ca-sr-supplement-5-l](https://www.desertcart.dk/products/60640961-red-sea-reef-foundation-a-ca-sr-supplement-5-l)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-10-28*