Marina i25 replacement Power Cartridge is made specifically to fit inside the Marina i25 internal filter.
Its unique design forces the water to enter through the centre of the cartridge. As unfiltered water enters the two-chamber cartridge, it first passes through the zeolite chamber, which removes toxic ammonia.
The water then enters the activated carbon chamber, where pollutants and odours are removed. The water then enters the floss layer, which traps dirt and debris. This unique flow of water results in a crystal clear water.
For best results, replace every 4 weeks. This package contains 2 Power Cartridges.
Marina Slim Filter Bio-Clear is a genuine replacement cartridge for all three Marina Slim Filter Models (S10, S15, S20).
Ideal for goldfish, the filter cartridge contains zeolite and Ceramitek for optimum filtration and a healthy aquarium. The zeolite effectively adsorbs toxic ammonia and reduces stress on fish, while the Ceramitek, a highly porous ceramic biological filter medium, optimizes biological filtration.
The easy-to-use disposable cartridge should be replaced every two weeks for best results. Never replace all filter cartridges at the same time to ensure a constant presence of beneficial bacteria.