【Fish Filter Cartridge for Tetra EasyCrystal】This aquarium filter cartridge is compatible with Tetra EasyCrystal internal Filter 250 and EasyCrystal FilterBox 300.
【Four-Stage Filtration】The fish tank filter cartridges adopts a dense dual-sided mesh, Ultra-Activated carbon and zeolite, a four-layer filtration system. The dual-sided mesh has a better filtration effect. The super activated carbon and zeolite can effectively filter and absorb impurities in the water, keep the water source clean, and provide a healthy growth environment for aquatic organisms.
【Multifunctional Zeolite】Zeolite can absorb harmful components such as ammonia and heavy metals in water. It can effectively balance the pH value of the water body and achieve a stable water balance state. It can also improve the fertilization efficiency of aquatic plants, making your aquatic plants grow faster and your life more comfortable and healthier.
【Easy Installation】Turn off the filter, take out the used filter element, and rinse the new filter element in running water or aquarium water to remove dust. After rinsing, insert the filter element into the filter and make sure the filter element is fully installed in the filter.
【Size Information】Medium Remplacement Filter Cartridges, Unit Size: 14 * 8.9 cm. We recommend that you replace the filter cartridge every 2-4 weeks to maintain water quality.(It depends on the number of fish in fish tank).