Fluval Spec/Flex/EVO Biomax 2.1oz

Fluval BioMax offers powerful biological filtration to maintain a clean and healthy aquarium by breaking down fish waste effectively. Delivers essential stage 3 biological filtration Features a vast surface area for ideal growth of beneficial bacteria Improves waste removal, fostering a thriving aquatic habitat BioMax is compatible with:SPEC 2.6 G (10 L) (Item# 10517, 10515)SPEC 5 G (19 L) (Item# 10516, 10518)EVO 5 G (19 L) (Item# 10528)EVO 13.5 G (52 L) (Item# 10531)FLEX 9G (34 L) (Item# 15004)FLEX 15G (57 L) (Item# 15006/15007)