Sera Filterwool is a pack containing replacement wool suitable for all filters in freshwater and marine water aquariums. This economical, high-quality wool can be inserted into your filter box to help retain dust and dirt particles as part of your tank’s filtration process and can be thoroughly washed out during filter changes for safe and effective re-use. The key features of Sera Filterwool are:
- Replacement wool for all types of filter box.
- Can be used in freshwater and saltwater aquariums.
- Suitable for internal and external filters
- Can be washed after use and re-used several times.
- Helps to trap fine dirt particles within wool construction to keep water clear and clean.
- Improves quality of water to provide fish and reptiles with healthy, habitable surroundings.