PolypLab Genesis Rock – Power Pack Rack w/ 4 Pack Genesis Rock

PolypLab Genesis Rock – Power Pack Rack w/ 4 Pack Genesis RockIncrease the overall filtration power of your tank by adding Genesis Rock to your system. – Designed For Fresh or Saltwater Aquariums- 23,000+ Additional Square Feet of Bacterial Space For Each Rock- 4 Rocks Included in Set- Reduces Phosphates and other dissolved organic compounds.- Increased Beneficial Bacteria Colonies- Zero Leach Technology – 100% Fired CeramicsRock Dimensions 4 x 4 x 1