- Extremely porous ceramic media for efficient biological filtration.
- Their surface area and pores are aptly sized to accommodate bacteria necessary for biological balance and to remove toxic ammonia and nitrite.
- Hollow design effectively distributes water flow and allows massive colonies of beneficial bacteria to grow on and inside each ring, creating an ideal “bio chemical filter”.
- They will not break down in the filter or alter pH or water hardness.
- Great for both fresh and saltwater aquariums
- In the event of excessive buildup, you may gently rinse with water from an established aquarium, if desired
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