--- product_id: 49157077 title: "API CRYSTAL Aquarium Filtration Media Cartridges for Superclean 40 Internal Filter, Size 1, Pack of 6" brand: "api" price: "KD 11.86" currency: KWD in_stock: false reviews_count: 13 category: "Api" url: https://www.desertcart.com.kw/products/49157077-api-crystal-aquarium-filtration-media-cartridges-for-superclean-40-internal store_origin: KW region: Kuwait --- # High porosity activated carbon for crystal-clear water Optimized bacteria hosting for superior biofiltration Monthly cartridge replacement for consistent freshness API CRYSTAL Aquarium Filtration Media Cartridges for Superclean 40 Internal Filter, Size 1, Pack of 6 **Brand:** api **Price:** KD 11.86 **Availability:** ❌ Out of Stock ## Summary > 💧 Keep your aquarium sparkling and your fish thriving with every cartridge swap! ## Quick Answers - **What is this?** API CRYSTAL Aquarium Filtration Media Cartridges for Superclean 40 Internal Filter, Size 1, Pack of 6 by api - **How much does it cost?** KD 11.86 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/49157077-api-crystal-aquarium-filtration-media-cartridges-for-superclean-40-internal) ## Best For - api enthusiasts ## Why This Product - Trusted api brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Value Meets Performance:** Cost-effective alternative to pet store prices without compromising quality - • **Effortless Maintenance Routine:** Pack of 6 cartridges designed for monthly swaps to keep filtration peak - • **Crystal-Clear Water, Every Time:** Unique resin blend and activated carbon eliminate odors and impurities - • **Perfect Fit for RENA SuperClean 40:** Specifically engineered size 1 cartridges ensure seamless compatibility - • **Biofilm Boost for Healthy Aquariums:** Supports beneficial bacteria that transform toxins into harmless compounds ## Overview API CRYSTAL Aquarium Filtration Media Cartridges (Size 1, Pack of 6) are designed exclusively for the RENA SuperClean 40 internal filter. Featuring a unique blend of high porosity activated carbon and resins, these cartridges effectively clear water and remove odors while providing an optimal environment for beneficial bacteria to thrive. Regular monthly replacement ensures consistent filtration performance, promoting a healthy aquatic ecosystem. Lightweight and easy to install, these cartridges offer a cost-efficient solution to maintaining pristine aquarium water. ## Description Product Description API CRYSTAL is composed of a unique blend of resins and high porosity activated carbon that makes water crystal clear and removes odors from your aquarium water. They have the role of hosting the bacteria present in your aquarium. These bacteria are essential to ensure the transformation of organic pollutants into non-toxic material. The more bacteria will be, the more effective filtration will be.. CRYSTAL API size 1 for RENA SuperClean 40 filters. Safety Warning Not suitable for children under 3 years, with small detachable parts. Review: GOOD PRODUCT - I bought a rena fish tank which looks great but didn't realize how expensive the bits and pieces for the filter was but I can say that these are a good price. They do work fab once bought. Review: Cheaper than Pets Stores - This was the best price I found for these Crystal Cartridges and they are great at keeping the tank water clean throughout the month. Change them once a month and fish stay healthy and well. ## Features - Rena Crystal Cartridges Size 1 6pk - Makes a loverly gift idea - Crystal Cartridges - Good quality item - For use with The rena super clean internal filter . ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003XLEYAU | | Batteries Included | No | | Batteries required | No | | Best Sellers Rank | 99,551 in Pet Supplies ( See Top 100 in Pet Supplies ) 1,891 in Aquarium Filter Accessories | | Customer Reviews | 4.2 4.2 out of 5 stars (427) | | Date First Available | 27 July 2010 | | Item Weight | 60 g | | Item model number | ADC650606 | | Number of Items | 36 | | Product Dimensions | 7.2 x 3.4 x 18.4 cm; 60 g | | Quantity | 1 | | Size | Size 1, Pack of 6 | ## Images ![API CRYSTAL Aquarium Filtration Media Cartridges for Superclean 40 Internal Filter, Size 1, Pack of 6 - Image 1](https://m.media-amazon.com/images/I/81MEKbwdvML.jpg) ![API CRYSTAL Aquarium Filtration Media Cartridges for Superclean 40 Internal Filter, Size 1, Pack of 6 - Image 2](https://m.media-amazon.com/images/I/815iZkFM9YL.jpg) ![API CRYSTAL Aquarium Filtration Media Cartridges for Superclean 40 Internal Filter, Size 1, Pack of 6 - Image 3](https://m.media-amazon.com/images/I/31Org5BPadL.jpg) ![API CRYSTAL Aquarium Filtration Media Cartridges for Superclean 40 Internal Filter, Size 1, Pack of 6 - Image 4](https://m.media-amazon.com/images/I/41N2S3wYSRL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ GOOD PRODUCT *by M***S on 25 January 2014* I bought a rena fish tank which looks great but didn't realize how expensive the bits and pieces for the filter was but I can say that these are a good price. They do work fab once bought. ### ⭐⭐⭐⭐⭐ Cheaper than Pets Stores *by G***Y on 4 July 2013* This was the best price I found for these Crystal Cartridges and they are great at keeping the tank water clean throughout the month. Change them once a month and fish stay healthy and well. ### ⭐⭐⭐⭐⭐ even tend to have them for 1 or 2 weeks longer than recommended. We have 2 healthy living goldfish for 4 ... *by R***E on 23 April 2015* found them very effective, even tend to have them for 1 or 2 weeks longer than recommended. We have 2 healthy living goldfish for 4 years now, and I put it all down to this filter great work. ## Frequently Bought Together - API CRYSTAL Aquarium Filtration Media Cartridges for Superclean 40 Internal Filter, Size 1, Pack of 6 - API ACCU-CLEAR Freshwater Aquarium Water Clarifier 37 ml Bottle - API STRESS COAT Aquarium Water Conditioner 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.com.kw/products/49157077-api-crystal-aquarium-filtration-media-cartridges-for-superclean-40-internal](https://www.desertcart.com.kw/products/49157077-api-crystal-aquarium-filtration-media-cartridges-for-superclean-40-internal) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-21*