--- product_id: 26106842 title: "OneFix" brand: "crystalclear" price: "€ 121.00" currency: EUR in_stock: true reviews_count: 8 category: "Crystal Clear" url: https://www.desertcart.be/products/26106842-onefix store_origin: BE region: Belgium --- # Safe for fish & aquatic life 1 gal fast-acting liquid Natural microbes digest organics OneFix **Brand:** crystalclear **Price:** € 121.00 **Availability:** ✅ In Stock ## Summary > 💦 Transform your pond into a crystal-clear oasis—because your aquatic life deserves the best! ## Quick Answers - **What is this?** OneFix by crystalclear - **How much does it cost?** € 121.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/26106842-onefix) ## Best For - crystalclear enthusiasts ## Why This Product - Trusted crystalclear brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Crystal Clear in Days:** Fast-acting formula starts working immediately to restore pond clarity. - • **Effortless Application:** Simply pour into your filter or high circulation area—no complicated setup required. - • **All-Season Aquatic Harmony:** Maintains a healthy pond environment year-round for koi, plants, and pets. - • **Trusted by Pond Enthusiasts:** Highly rated and proven effective for koi ponds, water gardens, and fountains. - • **Eco-Friendly Microbial Power:** Harnesses natural microbes to consume suspended dead organics and balance your ecosystem. ## Overview CrystalClear OneFix is a 1-gallon bio clarifier treatment that rapidly improves water clarity in small outdoor ponds, water gardens, and fountains. Using natural microorganisms, it digests suspended dead organics to restore balance and promote a healthy aquatic ecosystem. Safe for koi, fish, plants, and pets, this fast-acting liquid formula works effectively when water temperatures exceed 50°F, making it a trusted solution for maintaining pristine water all season long. ## Description Buy CrystalClear OneFix Beneficial Bio Clarifier Treatment for Clear Water Gardens, Small Outdoor Ponds & Fountains, Koi Fish, Plant & Pet Safe, 1 Gallon: Water Treatment - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: VERY SATISFIED!! - Have a 3000 gallon tank I set up for raising koi (engine for an aquaponic system.) Filled it with well water and let the water pump circulate without fish for 30 days. While the tank is in-ground, it was open air at the point of filling. In about a week.. It was so green that I could only see about 6 inches into it. Did some research.. Found this product. Added 24 ounces (shake the bottle WELL!) In 4 days.. The water was literally crystal clear! Have since added 10 small koi (approx 2 pounds of fish) and they have been thriving and growing for 8 weeks now. Have added the clarifier 2 more times at 3 week intervals (16 ounces each time) and the water as remained crystal clear. One week ago added 4 small (4 inch inch) algae eaters.. Will be keeping the clarifier handy in case they can't keep up with the algae produced by being in only partially shaded from the high Florida sun. VERY SATISFIED! Review: It really works ! - This product actually works like it says!!! Amazing results! ## Features - Clears Pond Water With Natural Microbes -- CrystalClear OneFix quickly balances ponds and improves water clarity by utilizing natural microorganisms that consume and eliminate suspended dead organics. - Fast-Acting Formula -- Starts working the second it hits the water. Simply pour treatment directly into the filter or an area with the greatest water circulation. Use when water temps are above 50°F. - Promotes a Balanced Ecosystem -- All-natural water clarifier works all season. Treatments restore balance to your aquatic ecosystem. Ideal for water gardens, koi ponds, water features and small ponds. - Digests Suspended Dead Organics -- Over time decaying organics in your pond can become suspended, causing water clarity issues. The microbes consume this organic debris, leaving behind cleaner water. - Safe for All Aquatic Life -- When used as directed, OneFix is safe for fish, koi, goldfish, snails, birds, animals, pets, plants, and the environment. Use 1 fluid oz per 375 gallons every 2 weeks. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00H56WIAW | | ASIN | B00H56WIAW | | Best Sellers Rank | #58,566 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #164 in Water Garden & Pond Treatment | | Brand Name | CrystalClear | | Customer Reviews | 4.3 4.3 out of 5 stars (291) | | Date First Available | April 14, 2015 | | Included Components | CrystalClear OneFix | | Is Discontinued By Manufacturer | No | | Item Form | Liquid | | Item Weight | 1.2 Pounds | | Item model number | CC021-1G | | Liquid Volume | 1 Gallons | | Manufacturer | Airmax | | Manufacturer | Airmax | | Manufacturer Part Number | CC021-1G | | Model Number | CC021-1G | | Product Dimensions | 6 x 6 x 12 inches; 1.21 Pounds | | Target Species | Fish | | UPC | 811262015561 | ## Product Details - **Brand:** CrystalClear - **Item Form:** Liquid - **Item Weight:** 1.2 Pounds - **Liquid Volume:** 1 Gallons - **Manufacturer:** Airmax ## Images ![OneFix - Image 1](https://m.media-amazon.com/images/I/71idNjr6FDL.jpg) ![OneFix - Image 2](https://m.media-amazon.com/images/I/81uB-SnwMQL.jpg) ![OneFix - Image 3](https://m.media-amazon.com/images/I/71MxVLYlfqL.jpg) ![OneFix - Image 4](https://m.media-amazon.com/images/I/91epFKGcYML.jpg) ![OneFix - Image 5](https://m.media-amazon.com/images/I/81xv75bNyIL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ VERY SATISFIED!! *by J***. on July 20, 2019* Have a 3000 gallon tank I set up for raising koi (engine for an aquaponic system.) Filled it with well water and let the water pump circulate without fish for 30 days. While the tank is in-ground, it was open air at the point of filling. In about a week.. It was so green that I could only see about 6 inches into it. Did some research.. Found this product. Added 24 ounces (shake the bottle WELL!) In 4 days.. The water was literally crystal clear! Have since added 10 small koi (approx 2 pounds of fish) and they have been thriving and growing for 8 weeks now. Have added the clarifier 2 more times at 3 week intervals (16 ounces each time) and the water as remained crystal clear. One week ago added 4 small (4 inch inch) algae eaters.. Will be keeping the clarifier handy in case they can't keep up with the algae produced by being in only partially shaded from the high Florida sun. VERY SATISFIED! ### ⭐⭐⭐⭐⭐ It really works ! *by L***D on May 9, 2025* This product actually works like it says!!! Amazing results! ### ⭐⭐⭐⭐ easy to use *by K***. on May 25, 2025* Arrived on time and was packaged well. Just started using it and waiting to see results. --- ## 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.be/products/26106842-onefix](https://www.desertcart.be/products/26106842-onefix) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-04-25*