--- product_id: 139072788 title: "DOHO Aquariumr Air Pump Sponge Filter Bio Filter for Fish Tank" brand: "doho" price: "60 zł" currency: PLN in_stock: true url: https://www.desertcart.pl/products/139072788-doho-aquariumr-air-pump-sponge-filter-bio-filter-for-fish store_origin: PL region: Poland --- # DOHO Aquariumr Air Pump Sponge Filter Bio Filter for Fish Tank **Brand:** doho **Price:** 60 zł **Availability:** ✅ In Stock ## Quick Answers - **What is this?** DOHO Aquariumr Air Pump Sponge Filter Bio Filter for Fish Tank by doho - **How much does it cost?** 60 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/139072788-doho-aquariumr-air-pump-sponge-filter-bio-filter-for-fish) ## Best For - doho enthusiasts ## Why This Product - Trusted doho brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Size:Large Sponge filter is fixed in the fish tank by suction cups.It needs to connect the air pump to work and quietness.The filter material is high density sponge can effectively dissolve oxygen into water and filtration of water.They are useful for as breeding filter or as secondary filter. Or they can be used as prefiltration unit by fitting to an external or a top filter.High density sponge to filter impurities in water and keep water clear Nitrifying bacteria are cultivated in sponges to from biochemical filtrationIncrease the oxygen content of the water. How Does It Work? A sponge filter uses bubbles of air from an external air pump, or an integral water pump to draw water through the sponge. As water is drawn out through the lift tube or pump, it is replaced by water entering the sponge. The surface of all the bubbles or pockets in the sponge provides a bed for the bacteria of a biological filter. The bacteria help to break down harmful waste (ammonia and nitrite). What Maintenance Does It Require? The sponge will need to be rinsed every time it becomes dirty, about once every 2 to 4 weeks. It’s helpful to reserve the beneficial bacteria by washing the sponge gently with water from the fish tank instead of tap water. After 3 to 6 months’ usage, the micro holes of sponge is gradually clogged by the tiny debris, the beneficial bacteria won’t have as much living space as before. So it is also recommended to replace the sponge once every three to six month or when the sponge gets worn out. ## Features - Sponge filter made of food-grade materials, Eco-friendly filter sponge and works great without noise【Max Tank Size:55Gallon】. - Sponge filters provide both mechanical and biological filtration - Traps floating debris and protect your baby fish from being sucked up into the filter, aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle. - Fish filter easy to set up: simply install an airline into the unit and turn on the air pump, great way to clean and oxygenate your tanks; Easy to clean: simply squeeze the sponges in tank water. - Filter air pump easy to install:comes with 2 suction cups, can be installed anywhere and can be easily hidden on the back wall of the aquarium; great for shrimp tanks, bettas, goldfish, guppies, fry, baby fish or breeder tanks. - Size:Product Dimension5.5”L x 2.4”W x 9.8”H Sponge Dimension2.4”D x5.9”H The height of the aeration tube can be adjusted freely Up to 16.5” H ## Images ![DOHO Aquariumr Air Pump Sponge Filter Bio Filter for Fish Tank - Image 1](https://images-na.ssl-images-amazon.com/images/I/61Jo2NSA2ZL.jpg) ![DOHO Aquariumr Air Pump Sponge Filter Bio Filter for Fish Tank - Image 2](https://images-na.ssl-images-amazon.com/images/I/61evbGdLNuL.jpg) ![DOHO Aquariumr Air Pump Sponge Filter Bio Filter for Fish Tank - Image 3](https://images-na.ssl-images-amazon.com/images/I/61UVCKcsuOL.jpg) ![DOHO Aquariumr Air Pump Sponge Filter Bio Filter for Fish Tank - Image 4](https://images-na.ssl-images-amazon.com/images/I/61Og7mEx3xL.jpg) ![DOHO Aquariumr Air Pump Sponge Filter Bio Filter for Fish Tank - Image 5](https://images-na.ssl-images-amazon.com/images/I/61L2EMfIzcL.jpg) --- ## 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.pl/products/139072788-doho-aquariumr-air-pump-sponge-filter-bio-filter-for-fish](https://www.desertcart.pl/products/139072788-doho-aquariumr-air-pump-sponge-filter-bio-filter-for-fish) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-22*