The Marina i25 Replacement Power Cartridge is custom - made to fit the Marina i25 internal filter. Its outer layer of polyester foam effectively catches tiny particles. Inside, there's carbon to get rid of pollutants and unpleasant smells, and zeolite to wipe out toxic ammonia. This combination creates a cleaner, healthier aquarium with crystal - clear water. It comes in a 2 - pack. It offers mechanical, biological, and chemical filtration. It's a breeze to replace and is precisely designed for the Marina i25 Internal Filter (A131). For top - notch results, replace it every 4 weeks.
Using the Marina i25 Internal Filter Refill Cartridge is simple. First, turn off the filter. Then, open the filter housing and take out the old cartridge. Put the new cartridge in place and close the housing. Make sure it fits snugly. Turn the filter back on. It's important to replace the cartridge every 4 weeks for the best water quality. When you're replacing it, you can give the filter housing a quick rinse to remove any debris. Store the extra cartridge in a cool, dry place until you need it. That way, your aquarium will always have clean and clear water.
