--- product_id: 263417475 title: "Seachem Reef Complete Liquid ionic Calcium Source, 500 ml" brand: "seachem" price: "€ 46.57" currency: EUR in_stock: true reviews_count: 5 category: "Seachem" url: https://www.desertcart.at/products/263417475-seachem-reef-complete-liquid-ionic-calcium-source-500-ml store_origin: AT region: Austria --- # 100% soluble for instant bioavailability 160,000 mg/L ionic calcium concentration Liquid form for precise dosing Seachem Reef Complete Liquid ionic Calcium Source, 500 ml **Brand:** seachem **Price:** € 46.57 **Availability:** ✅ In Stock ## Summary > 🌊 Elevate your reef game with liquid ionic power! ## Quick Answers - **What is this?** Seachem Reef Complete Liquid ionic Calcium Source, 500 ml by seachem - **How much does it cost?** € 46.57 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/263417475-seachem-reef-complete-liquid-ionic-calcium-source-500-ml) ## Best For - seachem enthusiasts ## Why This Product - Trusted seachem brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Dosing:** Liquid form makes precise, mess-free additions perfect for busy reef keepers. - • **Trusted by Enthusiasts:** Backed by 721 glowing reviews and a 4.7-star rating—join the reef elite. - • **Coral-Optimized Support:** Specifically designed to enhance coral growth and skeletal strength in reef tanks. - • **Instant Absorption Formula:** 100% soluble liquid ensures your corals get nutrients the moment you add it. - • **Ultra-High Calcium Concentration:** Boost your reef’s vitality with 60% more ionic calcium than standard supplements. ## Overview Seachem Reef Complete is a premium 500 ml liquid ionic calcium supplement delivering 160,000 mg/L calcium—60% higher than typical formulas. Fully soluble for rapid uptake, it supports vibrant coral growth and reef health with easy, precise dosing. Ideal for professional reef keepers seeking reliable, high-performance water treatment. ## Description Product Description Seachem Reef Complete 500Ml Set Contains: water treatment Review: Good stuff to add to aquariums Review: Reef complete is an easy to add supplement for small reef tank to maintain calcium. ## Features - Liquid ionic calcium source - 160,000 mg/L vs. 100,000 mg/L - 100% soluble. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000256976 | | Allergen Information | Allergen-Free | | Best Sellers Rank | #53,998 in Pet Supplies ( See Top 100 in Pet Supplies ) #463 in Fish Medication & Health Supplies | | Brand Name | Seachem | | Customer Reviews | 4.7 4.7 out of 5 stars (731) | | Global Trade Identification Number | 00000116033305 | | Included Components | water condiditoner | | Item Form | Liquid | | Item Type Name | water conditioner | | Item Weight | 0.6 Kilograms | | Liquid Volume | 500 Milliliters | | Manufacturer | Seachem | | Manufacturer Part Number | 333 | | Model Number | 333 | | Target Species | Fish | | UPC | 015568976964 000116033305 | | Unit Count | 1 Count | ## Product Details - **Brand:** Seachem - **Item form:** Liquid - **Item weight:** 0.6 Kilograms - **Liquid volume:** 500 Milliliters - **Manufacturer:** Seachem ## Images ![Seachem Reef Complete Liquid ionic Calcium Source, 500 ml - Image 1](https://m.media-amazon.com/images/I/715iiJ0uezL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I have an activated carbon reactor, will the reactor remove this stuff?** A: I don't know the answer but I shut my off for a few hours. **Q: What distinguishes this from their regular calcium additive?** A: It's more than just calcium. It has all the elements of saltwater mixes. You use Reef Plus with this, and your saltwater tank gets the added vitamins and amino acids it needs to be healthy. **Q: Seachem reef calcium. will it help strengthen the shell of my freshwater turtle? i have a reeve’s turtle/chinese pond turtle.** A: Made for saltwater! Need better foods for your turtle. Pond turtles don't need calcium supplements because it's usually in the water if you do water replacements! **Q: My calcium (159) and magnesium (870) levels are low in my nano 13.5g saltwater tank. Will this boost both or do I also need a magnesium additive?** A: Water changes work better than anything in these smaller tanks. Is this a hard coral tank? I use Seachem Reef Complete and Reef Plus together. If its a coral tank and not a fish tank, then make sure your using a reef salt mix with those extra additives. You can also add Reef Rubble pieces to keep your levels up in between water changes. Smaller tanks need more water changes because things change quicker with less space. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***N on 6 September 2025* Good stuff to add to aquariums ### ⭐⭐⭐⭐⭐ Review *by C***H on 18 February 2024* Reef complete is an easy to add supplement for small reef tank to maintain calcium. ### ⭐⭐⭐⭐⭐ Review *by H***N on 13 June 2022* My corals are happy and it's stupid simple to use. ## Frequently Bought Together - Seachem Reef Complete 500ml - Seachem Reef Plus 500ml - Seachem Reef Carbonate 500ml --- ## 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.at/products/263417475-seachem-reef-complete-liquid-ionic-calcium-source-500-ml](https://www.desertcart.at/products/263417475-seachem-reef-complete-liquid-ionic-calcium-source-500-ml) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-24*