Hygger Bio Sponge Filter - Large Goldfish No chemical binders

No chemical binders

- Model: WM-3E

For close to 60 years

^in terms of the relative ratio of nitrogen vis a vis other nutrients per ml

Hygger Bio Sponge Filter - Large Goldfish No chemical binders2 Stage Filtration System hygger internal filter for a small fish tank provides mechanical and biological filtration to help keep the water clear and the tank healthy. The fine sponge catches fish waste and tiny debris while bio balls provide plenty of spacious areas for the colony of beneficial bacteria. Aerate the water for more oxygen The best small internal aquarium filter not only can keep the tank water clean but also agitates water by making