Black and White Speckled Pebbles air accessories Seachem Kalkwasser is used to

Seachem Kalkwasser is used to prepare limewater solutions that maintain calcium concentrations at natural seawater levels and increase pH without impacting carbonate alkalinity

it is all-natural

For example

merely replace the dirty pads every few days

Black and White Speckled Pebbles air accessories Seachem Kalkwasser is used toBlack and White Speckled Pebbles Black and White Speckled Pebbles are used as a natural bottom substrate for aquariums, requiring thorough washing before use and a recommended layer thickness of 3 to 10cm. Premium aquarium gravel is a natural bottom for your aquarium. Clean with lukewarm water before use. Cover the bottom with a 3 to 10cm thick layer. Allow the gravel to move to the back. This ensures that the dirt will always collect at the front of