BRS Universal 1 Micron Carbon Block Filter Size:10in Based on our long-term research

Based on our long-term research

greater ease of use with automatic dosers

Nutrient-rich frozen PE Calanus zooplankton is a great source of essential fatty acids as well as astaxanthin and other carotenoid pigments to help support overall health and vivid natural coloration of aquarium inhabitants

After 14 days perform a minimum 30% water change

BRS Universal 1 Micron Carbon Block Filter Size:10in Based on our long-term researchBRS Universal Carbon Blocks have been specially formulated for industry leading chloramine and chlorine reduction making it the highest performance and longest lasting carbon block in our industry. Chlorine 35,000 @ 1 GPM* Chloramines 3,500 @ 0. 5 GPM* NSF Certified