Hygger Aquarium Biochemical Sponge Filter Small biological filter foam Detects carbonate and bicarbonate found

Detects carbonate and bicarbonate found in active aquariums

and include 3 different styles of guards with each

In case of a power failure

Incorporate them into your routine aquarium maintenance

and durable

Hygger Aquarium Biochemical Sponge Filter Small biological filter foam Detects carbonate and bicarbonate foundThe hygger Biochemical Sponge Filter delivers powerful 3 in 1 filtrationmechanical, biological, and aerationwhile staying whisper quiet and easy to maintain. Perfect for shrimp, bettas, fry tanks, nano aquariums, and large tanks for supplemental filtration, it combines a high density sponge with a ceramic bio media chamber to keep water clean, stable, and well oxygenated. Available in Small, Medium, and Large sizes to fit aquariums from 5 to 125