Genesis Rock 4-Pack new product Excessive TDS (post membrane) -

Excessive TDS (post membrane) - Color Changing DI Resin (requires 2

it's as simple as that

The small pore structure results in medium performance combined with low dust and price

All BRS additives mix crystal clear and do not leave any nasty residues or brown impurities behind like other calcium and alkalinity additives

Genesis Rock 4-Pack new product Excessive TDS (post membrane) -Increase the overall filtration power of your tank by adding Genesis Rock to your system. Features Specs: Designed For Fresh or Saltwater Aquariums 23,000+ Additional Square Feet of Bacterial Space For Each Rock 4 Rocks Included in the Set Reduces Phosphates and other dissolved organic compounds. Increased Beneficial Bacteria Colonies Zero Leach Technology 100% Fired Ceramics