Dymax Black Bio Sponge

Dymax black bio sponge is made of quality non-toxic material for both biological and mechanical filtration.
 

• Enhances good water quality as a filter media as a site for beneficial bacteria, and efficient as a mechanical filter medium (trapping loose particles of debris).
• Suitable for both freshwater and marine aquarium.
• Can be washed and re-used (rinse in tank water - not tap water - to maintain its use as a biological filter).
• Size: 32 x 12cm (2pcs/bag)