Unique Bargains Rectangular Filter Sponge Media Pad for Betta Aquarium Black 17.7"x17.7"

Provides and and increase the oxygen in aquarium and fish tank. The shape makes it effective to avoid and reduce the death rate of fish. The cotton has good effect on decomposing the and the food , improving the filtering and cleaning of water. Clean and reuse: The filter sponge can be rinsed clean in a sink. Changing filter sponge regularly will increase water quality by removing solid compounds before they continue to break down and add additional nutrients (which can increase growth) to the water in your fish tank. Cut to fit: Can easily be cut to any size needed. If sponge is used together with air pump, can get double effects of adding oxygen and filteration, enhance the viability of fish. Being cleaned with mater cnce per month without blocking and deforming. Feature: Remove harmful free-floating waste and debris. Improve water quality. Effectively remove all particles, foreign debris and excess food.