PolypLab Genesis Rock Booster - 2 Pack w/ Genesis Booster

Increase the overall filtration power of your tank by adding these two Genesis Rocks and using our bacterial supplement Polyplab Genesis.

- Includes (2) Genesis Rocks, (1) Bottle Genesis Bacteria
- 23,000+ Additional Square Feet of Bacterial Space For Each Block
- Reduces Phosphates and other dissolved organic compounds.
- Increased Beneficial Bacteria Colonies
- Zero Leach Technology - 100% Fired Ceramics

Rock Dimensions 4 x 4 x 1