--- product_id: 52587924 title: "Fluval 204/5/6/7-and 304/5/6/7 Filter Bio- Foam Block" brand: "fluval" price: "130.81 DT" currency: TND in_stock: true reviews_count: 13 url: https://www.desertcart.tn/products/52587924-fluval-204-5-6-7-and-304-5-6-7 store_origin: TN region: Tunisia --- # Extended media lifespan Optimized water flow Custom-fit debris trap Fluval 204/5/6/7-and 304/5/6/7 Filter Bio- Foam Block **Brand:** fluval **Price:** 130.81 DT **Availability:** βœ… In Stock ## Summary > 🧼 Keep your aquarium crystal clear β€” because your fish deserve the best! ## Quick Answers - **What is this?** Fluval 204/5/6/7-and 304/5/6/7 Filter Bio- Foam Block by fluval - **How much does it cost?** 130.81 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/52587924-fluval-204-5-6-7-and-304-5-6-7) ## Best For - fluval enthusiasts ## Why This Product - Trusted fluval brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Bio-Boosting Foam:** Enhances beneficial bacteria growth to supercharge your aquarium’s biological filtration. - β€’ **Balanced Pore Size:** Engineered for ideal water flow that maximizes filtration efficiency without sacrificing speed. - β€’ **Dual-Pack Convenience:** Two blocks per pack for hassle-free replacements and continuous pristine water quality. - β€’ **Long-Lasting Performance:** Durable foam media that extends filter life, reducing maintenance frequency and cost. - β€’ **Precision Fit, Zero Bypass:** Custom-designed to lock in debris, ensuring no unwanted particles escape filtration. ## Overview The Fluval 204/5/6/7 and 304/5/6/7 Filter Bio-Foam Block is a precision-engineered mechanical filtration media designed to fit perfectly within Fluval filter models. Its ideal pore size optimizes water flow and extends media lifespan while enhancing biological filtration by supporting beneficial bacteria. Sold in convenient 2-pack formats, it ensures consistent, high-quality filtration for a healthier aquatic environment. ## Description Free delivery and returns on eligible orders. Buy Fluval 204/5/6/7-and 304/5/6/7 Filter Bio- Foam Block at desertcart UK. Review: Filter - Always a top product. And would recommend. Buying for you have this filter. Always good quality. Review: Good value - as expected ## Features - Provides effective mechanical filtration - Custom fit to prevent debris bypass - Ideal pore size allows efficient water flow and longer media lifespan - Enhances the biological filtration process - Convenient 2-pack format ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001D02O64 | | Batteries Included | No | | Batteries required | No | | Best Sellers Rank | 36,445 in Pet Supplies ( See Top 100 in Pet Supplies ) 513 in Aquarium Filter Accessories | | Breed Recommendation | Large Breeds | | Colour | Weiss/opulenter Garten | | Customer Reviews | 4.6 4.6 out of 5 stars (2,270) | | Date First Available | 8 July 2010 | | Flavor | Geschmacksneutral. | | Item Weight | 25 g | | Item model number | A222A1 | | Number of Items | 1 | | Pet Life Stage | Adult Cats | | Pet Type | Fish | | Product Dimensions | 7.87 x 7.87 x 5.08 cm; 25 g | | Quantity | 1 | | Size | 1 Pack | | Special features | Portable | ## Product Details - **Brand:** Fluval - **Breed recommendation:** Large Breeds - **Pet toy type:** Ball - **Recommended uses for product:** Water purification - **Theme:** Cleaning ## Images ![Fluval 204/5/6/7-and 304/5/6/7 Filter Bio- Foam Block - Image 1](https://m.media-amazon.com/images/I/51oxCR5BDCL.jpg) ![Fluval 204/5/6/7-and 304/5/6/7 Filter Bio- Foam Block - Image 2](https://m.media-amazon.com/images/I/71QnwtTclgL.jpg) ![Fluval 204/5/6/7-and 304/5/6/7 Filter Bio- Foam Block - Image 3](https://m.media-amazon.com/images/I/411MCpPYOJL.jpg) ![Fluval 204/5/6/7-and 304/5/6/7 Filter Bio- Foam Block - Image 4](https://m.media-amazon.com/images/I/71ZMRfCc1mL.jpg) ![Fluval 204/5/6/7-and 304/5/6/7 Filter Bio- Foam Block - Image 5](https://m.media-amazon.com/images/I/819f24YDftL.jpg) ## Questions & Answers **Q: Are these foam blocks for the foam screen?** A: Yes they come is packs of 2 what I do is when I do a filter clean I wash then in clear water then dip them back in the water from the tank this is important then put them back in the filter. When I replace them I only replace one at a time. Replacement therefore on a rota system. Once again before you put a new one in rinse it in some water from your tank prior to placing it in the filter. Helps to keep the water at a good level. Hope this is helpful. **Q: Will this fit the 307?** A: Hi - I no longer use the external filter - I think I had the 206 model - it fitted it fine - I imagine the 307 would be fine as it's the same filter but just updated a bit - I would recommend asking maidenhead aquatics - they're online **Q: Does this do the fluval 205 pump, as the box i have just received says 206/7 and 306/7** A: No I don't think so pal the 205 is an older modal with different size smaller foams they could be trimmed I suppose **Q: Will this fit the 407** A: No the box says it will fit the 205 207 305 and 307. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Filter *by J***T on 25 January 2026* Always a top product. And would recommend. Buying for you have this filter. Always good quality. ### ⭐⭐⭐⭐⭐ Good value *by S***J on 4 July 2025* as expected ### ⭐⭐⭐⭐⭐ Very good *by G***L on 24 July 2025* Wouldn't shop any wear else ## Frequently Bought Together - Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Fluval Carbon Filter Media for Aquariums, Premium Bituminous Carbon Inserts, 100-gram Nylon Bags, 3 Count (Pack of 1), A1440 - Fluval BioMax Biological Material Remover, 500 g - Biological Filter Media for Aquariums --- ## 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/52587924-fluval-204-5-6-7-and-304-5-6-7](https://www.desertcart.tn/products/52587924-fluval-204-5-6-7-and-304-5-6-7) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-30*