Review on π CerMedia MarinePure Bio-Filter Media - 1-Gallon, Ideal for Marine and Freshwater Aquariums - 1.5-Inch Spheres by Miriam Davis
Work well. No questions.
They seem to be replacing quite a bit of live rock in my reef tank effectively, giving me more interesting rocky terrain and less sand. They are kept in a dark place in your aquarium or sump. They have tiny pores that easily become clogged with detritus and algae. They are also excellent for seeding other aquariums. I added 2 from my DT to my QT tank and just replaced the 2 I took out. Instant cycle tank.
- Lots of positive vibes
- Almost never
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