--- product_id: 48451819 title: "Tetra CrystalWater - eliminates clouding from aquarium for crystal clear water, 250ml" brand: "tetra" price: "$36.69" currency: USD in_stock: true reviews_count: 13 category: "Tetra" url: https://www.desertcart.us/products/48451819-tetra-crystalwater-eliminates-clouding-from-aquarium-for-crystal-clear-water store_origin: US region: United States of America --- # Clears water in 6-12 hours 250ml liquid formula Active minerals bind dirt particles Tetra CrystalWater - eliminates clouding from aquarium for crystal clear water, 250ml **Brand:** tetra **Price:** $36.69 **Availability:** ✅ In Stock ## Summary > 💎 Dive into crystal clarity—because your aquarium deserves the spotlight. ## Quick Answers - **What is this?** Tetra CrystalWater - eliminates clouding from aquarium for crystal clear water, 250ml by tetra - **How much does it cost?** $36.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/48451819-tetra-crystalwater-eliminates-clouding-from-aquarium-for-crystal-clear-water) ## Best For - tetra enthusiasts ## Why This Product - Trusted tetra brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fish-First Formula:** Optimized for fish health, ensuring a sparkling environment without harsh chemicals or algae treatments. - • **Pro-Level Water Care:** Trusted by thousands with a 4.5-star rating—join the community of aquarium pros who refuse to settle for murky water. - • **Effortless Integration:** Simply shake and dose 50ml per 1,000L—compatible with standard aquarium filters for seamless maintenance. - • **Mineral-Powered Purity:** Harnesses carefully selected minerals that gently capture and remove dirt particles for pristine clarity. - • **Crystal Clear in Half a Day:** Watch your aquarium transform within 6-12 hours—no more cloudy water holding back your aquatic vibe. ## Overview Tetra CrystalWater is a 250ml liquid treatment designed to eliminate cloudiness in aquarium water within 6 to 12 hours. Using active minerals, it binds and removes dirt particles, enhancing water clarity and fish health. Ideal for freshwater tanks (excluding those with invertebrates), it integrates easily with existing filtration systems and is highly rated by aquarium enthusiasts worldwide. ## Description Product Description Tetra CrystalWater - eliminates clouding from aquarium for crystal clear water, 250ml Directions Shake well before use. Add 50 ml Tetra Pond CrystalWater per 1,000 litres of pond water. Mix thoroughly into the pond water. Ensure the carbonate hardness (KH) of the water is equal or higher than 6° dH prior to each use. If the level is too low, increase it in a controlled manner using a product such as Tetra Pond WaterStabiliser. Do not use to combat algae. Review: Crystal water - This is a necessary item to keep the water nice and clear for your fish, it’s very functional, easy to use, great value for money, ideal for fish health Review: Tanks alot - Great for the tank ## Features - Causes serious eye irritation. - May be corrosive to metals. - Eliminates clouding from aquarium water within a matter of hours - Carefully selected minerals gently eliminate all kinds of dirt particles - The active ingredients bind small particles in the water, which can then be extracted by the aquarium filter - Initial effects visible after two to three hours - Crystal clear water within six to twelve hours - Not suitable for aquariums containing invertebrates such as snails, shrimps and other crustaceans ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005P7ESII | | Best Sellers Rank | 740 in Pet Supplies ( See Top 100 in Pet Supplies ) 4 in Aquarium Water Treatments | | Brand | Tetra | | Brand Name | Tetra | | Country Of Origin | United Kingdom | | Customer Reviews | 4.5 out of 5 stars 803 Reviews | | Global Trade Identification Number | 04004218144132 | | Item Form | Liquid | | Item Type Name | food | | Item Weight | 249 g | | Item form | Liquid | | Item weight | 249 g | | Liquid Volume | 250 Millilitres | | Liquid volume | 250 Millilitres | | Manufacturer | Spectrum Brands | | Manufacturer Part Number | T273 | | Model Number | T273 | | Target Species | Fish | | Unit Count | 250.0 millilitre | | Unit count | 250.0 millilitre | ## Product Details - **Brand:** Tetra - **Item form:** Liquid - **Item weight:** 249 g - **Liquid volume:** 250 Millilitres - **Manufacturer:** Spectrum Brands ## Images ![Tetra CrystalWater - eliminates clouding from aquarium for crystal clear water, 250ml - Image 1](https://m.media-amazon.com/images/I/7141U4e6gZL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: Can this be used with seachem prime soultion** A: do not now !! david mee **Q: can this clear a green tank ?** A: This product will not remove the green algae from the tank. It will be better to clean the tank, and then use green away, or algae minus products in the freshly cleaned tank. those products will keep the algae from growing. This product will make the water more clear by combining small contaminating particles in the water and then those gets filtered out. **Q: Can this be used with an under gravel filter** A: I have an under gravel filter & use Tetra Crystal Water. Have used it for 3 years without any problem. Hope this helps. **Q: Will this help with white bits float in my fresh water tropical tank** A: My not tropical fish sorry can not answer your question. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Crystal water *by P***T on 27 November 2024* This is a necessary item to keep the water nice and clear for your fish, it’s very functional, easy to use, great value for money, ideal for fish health ### ⭐⭐⭐⭐⭐ Tanks alot *by M***A on 8 May 2026* Great for the tank ### ⭐⭐⭐⭐ Does work. *by D***N on 5 November 2016* Does seems to work but not needed that often. This works well and comes in a big pack which I thing will last a long time as its not really needed that often. This isn't supplied in English packaging but there is a handy sticker on the back with a translation. ## Frequently Bought Together - Tetra CrystalWater - eliminates clouding from aquarium for crystal clear water, 250ml - API pH DOWN Freshwater Aquarium Water pH Reducing Solution 118 ml Bottle --- ## 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.us/products/48451819-tetra-crystalwater-eliminates-clouding-from-aquarium-for-crystal-clear-water](https://www.desertcart.us/products/48451819-tetra-crystalwater-eliminates-clouding-from-aquarium-for-crystal-clear-water) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-18*