Hygger Aquarium Biochemical Sponge Filter Size:Medium making them a helpful indicator

making them a helpful indicator of excess nutrients or overfeeding within the aquarium

and hardscape along with cloudy or smelly water

helping maintain stable water quality

Product Specifications

Hygger Aquarium Biochemical Sponge Filter Size:Medium making them a helpful indicatorThe Hygger Aquarium Biochemical Sponge Filter is a simple, low maintenance filter for freshwater aquariums that provides 3 in 1 filtration: mechanical filtration, biological filtration, and aeration. The sponge traps debris and uneaten food while the built in ceramic bio media provides a home for beneficial bacteria that help keep your water clean and balanced. At the same time, the rising air bubbles increase surface movement to improve oxygen