The BioCoreTM bio-filter fits easily within the Filter Tank. As water circulates within the Filter Tank, it is repeatedly exposed to beneficial bacteria within the BioCore, helping to reduce ammonia toxins from fish waste and fish food.

Model BC-40:

• For use with T40F filter tank
• 224 sq. ft. of colonizing surface area
• Max 2 per T40F filter tank

Model BC-75:

• For use with T75F filter tank
• 375 sq. ft. of colonizing surface area
• Max 5 per T75F filter tank