--- product_id: 60640961 title: "Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums" brand: "red sea" price: "1285.38 DT" currency: TND in_stock: true reviews_count: 2 category: "Red Sea" url: https://www.desertcart.tn/products/60640961-reef-foundation-a-ca-sr-supplement-5-l-calcium-strontium store_origin: TN region: Tunisia --- # Optimized for marine & reef aquariums 5L liquid formula for easy dosing Balanced Calcium & Strontium ratio Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums **Brand:** red sea **Price:** 1285.38 DT **Availability:** ✅ In Stock ## Summary > 🌊 Elevate your reef game with the ultimate calcium & strontium boost! ## Quick Answers - **What is this?** 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?** 1285.38 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/60640961-reef-foundation-a-ca-sr-supplement-5-l-calcium-strontium) ## 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 - • **Dual Mineral Power:** Calcium and Strontium blend supports robust coral skeleton growth - • **Marine-Grade Purity:** Formulated free of common allergens and impurities for a healthy aquatic environment - • **Trusted Reef Science:** Backed by Red Sea’s proven reef foundation system for consistent results - • **Long-Lasting Freshness:** Fresh 5L supply with extended shelf life—no rush, just reef success - • **Effortless Coral Vitality:** Liquid form ensures precise, mess-free dosing for thriving reefs ## Overview Red Sea Reef Foundation A (Ca/Sr) Supplement is a 5-liter liquid additive designed to deliver a precise balance of calcium and strontium, essential for healthy coral growth in marine and reef aquariums. Trusted by reef enthusiasts, this easy-to-use formula supports vibrant, strong coral skeletons while maintaining optimal water chemistry. Packaged for freshness and purity, it’s the go-to choice for professional and hobbyist aquarists aiming for thriving reef ecosystems. ## Description desertcart.com : Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums : Pet Supplies Review: Received fresh product - I like Red Sea products and I was happy that this is fresh and does not expire for a couple years! Review: Great product - I use the foundation supplements for my mixed reef with good results. I prefer this over the foundation A powder since it’s about the same cost per amount of supplement and it’s much easier to use. There is a tingle of brown in the fluid which is normal per Red Sea support. ## 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 | | ASIN | B011UMNJY0 | | Allergen Information | Buckwheat Free | | Best Sellers Rank | #108,778 in Pet Supplies ( See Top 100 in Pet Supplies ) #978 in Aquarium Water Treatments | | Brand Name | Red Sea | | Customer Reviews | 4.8 4.8 out of 5 stars (28) | | Date First Available | July 15, 2015 | | Global Trade Identification Number | 00730773220151 | | Is Discontinued By Manufacturer | No | | Item Form | Liquid | | Item Type Name | Aquarium Supplies | | Item Weight | 16 ounces | | Item model number | 63322015 | | Liquid Volume | 5 Liters | | Manufacturer | Pro-Motion Distributing - Direct | | Manufacturer | Pro-Motion Distributing - Direct | | Manufacturer Part Number | 63322015 | | Model Number | 63322015 | | Product Dimensions | 5 x 2 x 4 inches; 1 Pounds | | Target Species | Fish | | UPC | 730773220151 | | Unit Count | 1 Pack | ## Product Details - **Brand:** Red Sea - **Item Form:** Liquid - **Item Weight:** 16 ounces - **Liquid Volume:** 5 Liters - **Manufacturer:** Pro-Motion Distributing - Direct ## Images ![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) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Received fresh product *by S***G on April 8, 2023* I like Red Sea products and I was happy that this is fresh and does not expire for a couple years! ### ⭐⭐⭐⭐⭐ Great product *by A***N on July 3, 2019* I use the foundation supplements for my mixed reef with good results. I prefer this over the foundation A powder since it’s about the same cost per amount of supplement and it’s much easier to use. There is a tingle of brown in the fluid which is normal per Red Sea support. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/60640961-reef-foundation-a-ca-sr-supplement-5-l-calcium-strontium](https://www.desertcart.tn/products/60640961-reef-foundation-a-ca-sr-supplement-5-l-calcium-strontium) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-17*