Wunder Filter Wool helps keep water clear and free of impurities, it should be replaced weekly, which allows you to easily remove any unwanted objects, like left over food, plant leaves from your aquarium, this in turn reduces the load on your bacterial filtration.
Can be cut to size and shape required
Removes suspended debris
For use in freshwater and saltwater aquariums
Approximate dimensions of unrolled wool (mm) LxWxH 700x500
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