• The Filter Foam Set for the BioCompact 50 includes 2 replacement filter foam sets
• Each set includes coarse and fine filter foams
• Timing to replace the filter foam set varies upon aquarium size and the number of fish and plants

The Filter Foam Set for the BioCompact 50 includes two replacement filter foams sets. Each set includes coarse and fine filter foams. Timing to replace the filter foam set varies upon aquarium size, number of fish and plants, and declines in filter performance.