---
product_id: 173677006
title: "Red Sea Reef Foundation A (Ca/Sr) Supplement, 1000ml - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums"
brand: "red sea"
price: "€ 92.23"
currency: EUR
in_stock: true
category: "Red Sea"
url: https://www.desertcart.fr/products/173677006-red-sea-reef-foundation-a-ca-sr-supplement-1000ml-calcium
store_origin: FR
region: France
---

# Daily liquid dosing for reef vitality Calcium & Strontium precise blend Balanced coral skeleton support Red Sea Reef Foundation A (Ca/Sr) Supplement, 1000ml - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums

**Brand:** red sea
**Price:** € 92.23
**Availability:** ✅ In Stock

## Summary

> 🌿 Build your reef’s future—one drop at a time!

## Quick Answers

- **What is this?** Red Sea Reef Foundation A (Ca/Sr) Supplement, 1000ml - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums by red sea
- **How much does it cost?** € 92.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/173677006-red-sea-reef-foundation-a-ca-sr-supplement-1000ml-calcium)

## 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

- • **Gluten-Free & Safe:** Allergen-conscious formula perfect for sensitive reef ecosystems
- • **Daily Liquid Supplement:** Easy-to-dose 1000ml bottle ensures consistent reef foundation
- • **Trusted Reef Care Program:** Backed by 30+ years of Red Sea’s marine science expertise
- • **Magnesium-Enhanced Formula:** Supports balanced and robust coral skeleton formation
- • **Precision Calcium & Strontium Ratio:** Engineered to match coral needs for optimal skeletal growth

## Overview

Red Sea Reef Foundation A is a premium 1000ml liquid supplement combining calcium, strontium, and magnesium in coral-optimized ratios. Designed for daily dosing, it forms the essential base for healthy coral skeleton growth in marine and reef aquariums. Trusted by reefkeepers worldwide, this allergen-free formula leverages over 30 years of Red Sea’s expertise to ensure vibrant, thriving coral ecosystems.

## Description

Buy Red Sea Reef Foundation A (Ca/Sr) Supplement, 1000ml - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums: Calcium - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Red Sea Foundation A aquarium supplement
- Part of Red Sea's Reef Care Program for optimal aquarium coral health
- Contains blended salts of calcium and strontium in the ratio required by corals
- Also contains magnesium, which helps support balanced formation of the coral skeleton
- Add this liquid supplement to your aquarium daily to form the basic foundation of coral skeletons

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074MKR92B |
| ASIN  | B074MKR92B |
| Allergen Information | Cereals free of Gluten |
| Best Sellers Rank | #132,719 in Health & Household ( See Top 100 in Health & Household ) #697 in Calcium Mineral Supplements |
| Brand Name | Red Sea |
| Customer Reviews | 4.8 4.8 out of 5 stars (132) |
| Date First Available  | August 18, 2004 |
| Department  | All Ages |
| Global Trade Identification Number | 00730773220144 |
| Item Form | Liquid |
| Item Type Name | Red Sea Reef Foundation A Supplement (Ca/Sr) - 500ml |
| Item Weight | 0.77 kg |
| Item model number  | Red Sea Reef Foundation A Supplement (Ca |
| Liquid Volume | 500 ml |
| Manufacturer | Red Sea |
| Manufacturer  | Red Sea |
| Manufacturer Part Number | Red Sea Reef Foundation A Supplement (Ca |
| Model Number | Red Sea Reef Foundation A Supplement (Ca |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Product Dimensions  | 3.15 x 7.87 x 3.15 inches; 1.7 pounds |
| Target Species | Invertebrates |
| UPC | 730773220144 |
| Unit Count | 16.9 Fluid Ounces |

## Product Details

- **Brand:** Red Sea
- **Item Form:** Liquid
- **Item Weight:** 0.77 kg
- **Liquid Volume:** 500 ml
- **Number of Packs:** 1

## Images

![Red Sea Reef Foundation A (Ca/Sr) Supplement, 1000ml - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums - Image 1](https://m.media-amazon.com/images/I/613ucKNfHbL.jpg)

## Frequently Bought Together

- Aqcult 306167 1 Ltr Red Reefer Foundation A Calcium & Strontium
- Red Sea Aqcult 306168 1 LTR Reefer Foundation B Alkalin
- Red Sea Reef Foundation C, Magnesium Supplement, 1 Liter

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**Shop now:** [https://www.desertcart.fr/products/173677006-red-sea-reef-foundation-a-ca-sr-supplement-1000ml-calcium](https://www.desertcart.fr/products/173677006-red-sea-reef-foundation-a-ca-sr-supplement-1000ml-calcium)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-10-11*