Review on CerMedia MarinePure Biofilter Media Gems - 90g, Tan (905002) by Christine Chase

This is the perfect nano aquarium solution, I use 2 packs in my evo 13.5 and it will be more than enough for my nano reef bioload. There about a dime almost like a ball but not round if that makes sense and they seem to be holding up well and not falling apart like other brands. Marine Clear is by far the best choice for this type of media.