6-Layer Betta Corner Sponge Filter --- Underwater Corner Aquarium Filter - Works for Tropical Fish & Breeder Aquarium - Slow current - Perfect for Fry & Small Fish - Must-have for Aquarium Hobbyist

What's in the Pack?

The contents of the package includes 1 triangular shaped sponge filter that will perfectly fit into corners. This filter is made from high quality cotton and measure 1.5 inches high. They can be used with small fish tanks ranging from 5-20 gallons. The large surface area of the sponge filter pores will promote the propagation and colonization of nitrifying bacteria; thus the sponge provides both biological and chemical filtration for your tank. The air infusion chamber produces minute bubbles which increase the oxygen solubility.

Tips for using a betta sponge filtration system:

1. SEED THE SPONGE --- When replacing the sponge filters, we recommend to "seed" the sponge first. To seed the sponge at an accelerated rate, take the sponge media and move it around the gravel or substrate. This is where nitrifying bacteria is found in high numbers and will colonize on the pores, creating optimal health for your fish and plant life.
2.TO RINSE, USE AQUARIUM WATER --- When rinsing and cleaning the sponge of debris from your tank, always use aquarium water to ensure that nitrifying bacteria still thrives. Using tap water will kill the good bacteria that has colonized on the sponge. Do not use hot water.Clean the sponge regularly, every few (2 to 4) weeks.
3. REPLACE EVERY 6 MONTHS --- It is recommended to replace the biochemical cotton sponge every 6 months to ensure proper maximum filtration, and colonization of nitrifying bacteria.