--- 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: "310.55 DT" currency: TND in_stock: true reviews_count: 7 category: "Red Sea" url: https://www.desertcart.tn/products/173677006-red-sea-reef-foundation-a-ca-sr-supplement-1000ml-calcium store_origin: TN region: Tunisia --- # 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:** 310.55 DT **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?** 310.55 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/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 Become a Reefkeeper! 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 Become a Reefkeeper! 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 Best in Class Visit the Store Best in Class Visit the Store Review: Awesome product - keeps my corals growing nice and beautifully!! Review: Works great - I use as part of my Red Sea supplement regimen. Tank keeps kicking ## 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 | | Allergen Information | Cereals free of Gluten | | Best Sellers Rank | #133,334 in Health & Household ( See Top 100 in Health & Household ) #692 in Calcium Mineral Supplements | | Brand | Red Sea | | Brand Name | Red Sea | | Customer Reviews | 4.8 out of 5 stars 127 Reviews | | Global Trade Identification Number | 00730773220144 | | Included Components | 1 Liter reef foundation | | Item Form | Stick | | Item Type Name | Red Sea Reef Foundation A Supplement (Ca/Sr) - 500ml | | Item Weight | 0.77 Kilograms | | Liquid Volume | 500 Milliliters | | Manufacturer | Red Sea | | Manufacturer Part Number | Red Sea Reef Foundation A Supplement (Ca | | Model Number | Red Sea Reef Foundation A Supplement (Ca | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Fish | | UPC | 730773220144 | | Unit Count | 16.9 Fluid Ounces | ## Product Details - **Brand:** Red Sea - **Item Form:** Liquid - **Item Weight:** 0.77 Kilograms - **Liquid Volume:** 500 Milliliters - **Manufacturer:** Red Sea ## 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) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Awesome product *by M***Y on August 17, 2023* keeps my corals growing nice and beautifully!! ### ⭐⭐⭐⭐⭐ Works great *by B***S on April 15, 2021* I use as part of my Red Sea supplement regimen. Tank keeps kicking ### ⭐⭐⭐⭐⭐ A must for reef aquariums *by B***D on August 19, 2020* My corals look a lot better using the red sea ## 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 --- ## 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/173677006-red-sea-reef-foundation-a-ca-sr-supplement-1000ml-calcium](https://www.desertcart.tn/products/173677006-red-sea-reef-foundation-a-ca-sr-supplement-1000ml-calcium) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-11*