--- product_id: 176992347 title: "IceCap Kalk Mixing Reactor KM-120" brand: "icecap" price: "£354.59" currency: GBP in_stock: true reviews_count: 3 category: "Ice Cap" url: https://www.desertcart.co.uk/products/176992347-icecap-kalk-mixing-reactor-km-120 store_origin: GB region: United Kingdom --- # Compact 5.7" x 5.7" footprint 1 gallon holding capacity Adjustable speed magnetic mixer IceCap Kalk Mixing Reactor KM-120 **Brand:** icecap **Price:** £354.59 **Availability:** ✅ In Stock ## Summary > 🧪 Elevate your reef game with effortless, precision Kalk mixing! ## Quick Answers - **What is this?** IceCap Kalk Mixing Reactor KM-120 by icecap - **How much does it cost?** £354.59 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/176992347-icecap-kalk-mixing-reactor-km-120) ## Best For - icecap enthusiasts ## Why This Product - Trusted icecap brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Durable solid PVC and acrylic construction resists corrosion and simplifies maintenance for long-term reliability. - • **Mess-Free Refills:** Quick-fill cap and push-fit tubing connectors make Kalkwasser addition clean, fast, and hassle-free. - • **Space-Savvy Design:** Slim 5.7" footprint and 25" height fits effortlessly under tanks up to 100 gallons, blending seamlessly with your setup. - • **Precision Mixing, Zero Fuss:** Adjustable magnetic mixer ensures perfectly concentrated Kalkwasser every time without manual stirring. - • **Optimized Aquarium Chemistry:** Maintains stable pH 8.3 and boosts calcium & alkalinity, promoting vibrant coral growth and reef health. ## Overview The IceCap Kalk Mixing Reactor KM-120 is a compact, durable reactor designed for aquariums up to 100 gallons. Featuring an adjustable speed magnetic mixer and a 1-gallon capacity, it automates the preparation of calcium hydroxide solution to maintain optimal calcium and alkalinity levels. Its slim profile fits easily under tanks, while quick-fill and push-fit connectors streamline maintenance. Ideal for reef enthusiasts seeking stable pH and enhanced coral vitality. ## Description Simplify & automate the addition of calcium hydroxide with the IceCap Kalk Mixer! The IceCap Kalk Mixer is a dedicated reactor for mixing calcium hydroxide (Kalkwasser) solution to ensure maximum concentration with each dose to your aquarium and eliminates the need for frequent manual mixing. A clever magnetic mixer means no more pesky powerheads to clean and replace frequently. The intelligent design makes maintenance a breeze and the slim profile allows for easy placement under your tank and integration with your existing ATO system. Features Adjustable speed magnetic mixer Solid PVC and acrylic construction Compact profile easily fits under your tank Reactor vessel detaches from base for easy maintenance Push-fit tubing connectors Convenient quick-fill cap for mess free Kalkwasser addition Sealed airtight environment preserves solution potency Gravity drain design ensures reliable performance Benefits Using Kalkwasser to supplement the aquarium with calcium and carbonates is one of the most efficient and economic methods and has been used successfully on reef aquariums for many years. The Kalkwasser powder is relatively inexpensive, is super concentrated and can simply be mixed into your top-off water. Additionally, the elevated pH of the resulting kalkwasser solution and CO2 reducing properties help to maintain a more desirable and stable pH of 8.3 inside your tank. Review: Absolutely love it! - This kalk reactor is amazing. I bought a smart outlet to turn it on for 1 minute every 4 hours, and a Kamoer X1 Pro 2 to dose 125 ml every hour. It's working like a charm to keep my pH up and adds some calcium and alkalinity to supplement my calcium reactor. My acropora are rewarding me with some serious polyp extension due to the higher pH. Review: Refurbished sold as New - I paid for a new unit and received one that was not new as it had no instructions in the box and several ties were untied and laying in the bottom of the box plus you could see the box had been taped over twice. ## Features - Small - Ideal for Aquariums up to 100gal - Footprint: 5.7" x 5.7" | Body Diameter: 5" | Height: 25" | Holding Capacity: ~1gal - Adjustable speed magnetic mixer - Solid PVC and acrylic construction - Compact profile easily fits under your tank ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07RJ233WW | | ASIN | B07RJ233WW | | Best Sellers Rank | #372,553 in Pet Supplies ( See Top 100 in Pet Supplies ) #2,342 in Aquarium Water Treatments | | Brand Name | IceCap | | Customer Reviews | 3.5 3.5 out of 5 stars (8) | | Date First Available | May 8, 2019 | | Date First Available | May 8, 2019 | | Item Package Dimensions L x W x H | 23.9 x 8.9 x 8.7 inches | | Item Weight | 5.44 pounds | | Manufacturer | IceCap | | Manufacturer | IceCap | | Package Dimensions | 23.9 x 8.9 x 8.7 inches; 5.45 Pounds | ## Images ![IceCap Kalk Mixing Reactor KM-120 - Image 1](https://m.media-amazon.com/images/I/31rd+MqABzL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Absolutely love it! *by B***T on January 19, 2021* This kalk reactor is amazing. I bought a smart outlet to turn it on for 1 minute every 4 hours, and a Kamoer X1 Pro 2 to dose 125 ml every hour. It's working like a charm to keep my pH up and adds some calcium and alkalinity to supplement my calcium reactor. My acropora are rewarding me with some serious polyp extension due to the higher pH. ### ⭐⭐ Refurbished sold as New *by M***S on February 18, 2022* I paid for a new unit and received one that was not new as it had no instructions in the box and several ties were untied and laying in the bottom of the box plus you could see the box had been taped over twice. ### ⭐ Bad design *by A***R on August 18, 2022* Well being brand new the magnet wont turn solution. I had to do manually for 2 days until i got timer. So i would turn it on for a minute. Wait 15 minutes turn back on nothing. You can hear it. So i did again for a few days and same thing. So im sending back and purchasing one with a stirring paddle ## Frequently Bought Together - IceCap Kalk Mixing Reactor KM-120 - HI772-26 HI755-26 Alkalinity Checker Reagent (25 Tests) - Hanna Instruments - 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 --- ## 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.co.uk/products/176992347-icecap-kalk-mixing-reactor-km-120](https://www.desertcart.co.uk/products/176992347-icecap-kalk-mixing-reactor-km-120) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-25*