Oase BioMaster 60ppi Prefilter Foam Size:6 pack a good source of fiber

a good source of fiber to promote a healthy digestive function

Skilful workmanship

All this in addition to having a long cord with plug attached means that it has never been simpler and easier to provide a safe

Provides constant souce of fresh water

These are particularly helpful in small or nano style systems where larger tools are difficult to utilize and maneuver

Oase BioMaster 60ppi Prefilter Foam Size:6 pack a good source of fiberThe BioMaster series comes with 45 ppi activated carbon filters inside the pre filter module. To optimize filtration Oase offers coarse 30 ppi, fine 45 ppi, and ultra fine 60 ppi replacement foams to customize the pre filter. All replacement pre filter foams come in sets of four or six for your replenishment needs. Timing to replace the pre filter foams varies upon aquarium size, number of fish and plants, and declines in filter performance. All