Sera Filter Wool
Sera Filter Wool gathers floating debris for easy periodic rinsing and absorbs unwanted contaminants in the water. Each bag comes with 3.5 oz of fish-safe wool material, suitable for any type of filter.
| Specification | Value |
|---|---|
| Material | Wool |
| Weight | 3.5 oz |
| Usage | Water filter media for aquariums |
| Compatibility | Any filter type |
FAQ
Is the wool safe for fish?
Yes, the wool is fish-safe and does not release harmful substances into the water.
How often should I rinse the filter wool?
Rinse the filter wool periodically, when you notice a buildup of debris or when the filter becomes less effective.
Can I use this wool in a freshwater or saltwater aquarium?
Yes, it is suitable for both freshwater and saltwater aquariums.

Ryan Hardacre –
The filter wool works well in my freshwater tank. It captures fine particles without clogging the filter. I rinse it every two weeks and the water clarity has improved noticeably.
Jane Ince –
Easy to install and effective at trapping debris. My fish seem more active since I started using it. A little more maintenance than expected, but worth it.
Lily Lewis –
Great quality wool that holds up well over time. No fish stress reported. Works smoothly with my sponge filter and keeps the water clean.