--- product_id: 20790332 title: "Brightwell Aquatics Kalk+2 Kalkwasser Powder for Reef Aquariums, 450g" brand: "brightwell aquatics" price: "197.40 DT" currency: TND in_stock: true category: "Brightwell Aquatics" url: https://www.desertcart.tn/products/20790332-brightwell-aquatics-kalk-2-kalkwasser-powder-for-reef-aquariums-450g store_origin: TN region: Tunisia --- # Calcium, Strontium & Magnesium in aragonite ratios Stable pH & alkalinity support Premium American-made quality Brightwell Aquatics Kalk+2 Kalkwasser Powder for Reef Aquariums, 450g **Brand:** brightwell aquatics **Price:** 197.40 DT **Availability:** βœ… In Stock ## Summary > 🌊 Elevate Your Reef Game with Kalk+2 – The Ultimate Mineral Boost for Coral Champions! ## Quick Answers - **What is this?** Brightwell Aquatics Kalk+2 Kalkwasser Powder for Reef Aquariums, 450g by brightwell aquatics - **How much does it cost?** 197.40 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/20790332-brightwell-aquatics-kalk-2-kalkwasser-powder-for-reef-aquariums-450g) ## Best For - brightwell aquatics enthusiasts ## Why This Product - Trusted brightwell aquatics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Chloride-Free Purity:** No added chlorides or unwanted saltsβ€”safe, clean supplementation for sensitive marine life. - β€’ **Proudly Made in the USA:** Crafted with care and innovation, ensuring premium quality for your reef’s health and longevity. - β€’ **Reef-Ready Mineral Blend:** Precisely balanced calcium, strontium, and magnesium mimic natural aragonite for vibrant coral growth. - β€’ **pH & Alkalinity Guardian:** Maintains optimal pH and temporary alkalinity to keep your reef ecosystem thriving and stable. - β€’ **Scientifically Engineered Formula:** Developed by marine scientists to outperform traditional kalkwasser supplements with proven results. ## Overview Brightwell Aquatics Kalk+2 is a premium powdered kalkwasser supplement delivering essential calcium, strontium, and magnesium in natural aragonite ratios. Designed to stabilize pH and alkalinity without adding harmful chlorides, this American-made formula supports faster coral growth and healthier reef ecosystems. Ideal for experienced reef hobbyists seeking scientifically backed, high-quality water treatment to optimize marine invertebrate vitality. ## Description Brightwell Aquatics Kalk+2 is an advanced Kalkwasser-based powdered supplement designed to provide essential calcium, strontium, and magnesium for reef aquariums. These elements are crucial for the formation of aragonite, the skeletal material of reef-building invertebrates like corals, clams, and calcareous algae. Unlike traditional calcium supplements, Kalk+2 does not contain chloride salts, making it a safer choice for reef aquariums. It also helps regulate pH and temporary alkalinity, maintaining stable conditions for your marine life. Kalk+2 is formulated by a marine scientist and is ideal for experienced hobbyists who are familiar with kalkwasser products. Brightwell Aquatics Kalk+2 is designed to support the building blocks of coral formation and vibrant reef ecosystems. By supplementing with this product, you can ensure that your reef tank is optimized for the best possible environment for your marine life. ## Features - ESSENTIAL CALCIUM, STRONTIUM & MAGNESIUM: Brightwell Aquatics Kalk+2 provides the necessary calcium, strontium, and magnesium in the same ratios found in aragonite, supporting healthy reef-building invertebrates like corals, clams, and calcareous algae. - MAINTAINS pH & ALKALINITY: Brightwell Aquatics Kalk+2 helps maintain a stable pH within the optimal range while temporarily supporting alkalinity levels, promoting a balanced and thriving reef environment. - NO CHLORIDE ADDED: Unlike other calcium supplements, Brightwell Aquatics Kalk+2 does not contain chloride or any other conservative elements, making it a safer choice for hobbyists who want to avoid additional salts in their aquarium. - PROVEN FORMULA FOR REEF KEEPERS: Brightwell Aquatics Kalk+2 improves upon traditional calcium supplement formulas, offering a more effective and scientifically-backed solution for aquarium hobbyists. - AMERICAN-MADE EXCELLENCE – Brightwell Aquatics is an industry-leading brand committed to providing innovative and scientifically backed aquatic care products. Made in the USA, we consistently deliver advanced superior quality solutions to elevate the vibrancy and health of your aquarium. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00BUFTC5S | | Allergen Information | Sulphites Free | | Best Sellers Rank | #62,339 in Pet Supplies ( See Top 100 in Pet Supplies ) #511 in Aquarium Water Treatments | | Brand | Brightwell Aquatics | | Brand Name | Brightwell Aquatics | | Customer Reviews | 4.6 out of 5 stars 247 Reviews | | Global Trade Identification Number | 00810086011155 | | Included Components | Kalk+2 | | Item Form | Powder | | Item Type Name | WATER CONDITIONER | | Item Weight | 16 ounces | | Liquid Volume | 1 gallons | | Manufacturer | TopDawg Pet Supply | | Manufacturer Part Number | KALK450 | | Model Number | KALK450 | | Target Species | Invertebrates | | UPC | 810086011155 | | Unit Count | 1 Count | ## Product Details - **Brand:** Brightwell Aquatics - **Item Form:** Powder - **Item Weight:** 16 ounces - **Liquid Volume:** 1 Gallons - **Manufacturer:** TopDawg Pet Supply ## Images ![Brightwell Aquatics Kalk+2 Kalkwasser Powder for Reef Aquariums, 450g - Image 1](https://m.media-amazon.com/images/I/61dSH2qaTcL.jpg) ![Brightwell Aquatics Kalk+2 Kalkwasser Powder for Reef Aquariums, 450g - Image 2](https://m.media-amazon.com/images/I/8108bihOwqL.jpg) ![Brightwell Aquatics Kalk+2 Kalkwasser Powder for Reef Aquariums, 450g - Image 3](https://m.media-amazon.com/images/I/818-eaSqf6L.jpg) ![Brightwell Aquatics Kalk+2 Kalkwasser Powder for Reef Aquariums, 450g - Image 4](https://m.media-amazon.com/images/I/81ibZ4znl4L.jpg) ![Brightwell Aquatics Kalk+2 Kalkwasser Powder for Reef Aquariums, 450g - Image 5](https://m.media-amazon.com/images/I/81mS0MESwmL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Brightwell Aquatics Kalk+2 - Advanced Calcium, Magnesium & Strontium Powdered Kalkwasser Supplement for Marine Fish and Aquariums - Red Sea Reef Energy Plus 1000ml (AB+) All in One Coral Food for Saltwater Aquarium Marine Reef Tanks | Food for Soft, LPS, SPS, and Non-Photosynthetic Corals - Brightwell Aquatics Replenish - Advanced Trace and Minor Element Supplement for Marine Fish and Reef Aquarium 500-ml --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/20790332-brightwell-aquatics-kalk-2-kalkwasser-powder-for-reef-aquariums-450g](https://www.desertcart.tn/products/20790332-brightwell-aquatics-kalk-2-kalkwasser-powder-for-reef-aquariums-450g) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-10-20*