WIO - Black Venom - Nano Rock 2kg All in one The alkalinity or carbonate hardness

The alkalinity or carbonate hardness should be kept as stable as possible requiring highly sensitive and accurate means for testing

Controlled exclusively via the Fluval Connect mobile app and highlighted by RGB + dual white LEDs

These products' inherent instability makes them potentially dangerous to coral health

Rivulet is a Riverbed that showcases the balance and harmony found in wild habitats

WIO - Black Venom - Nano Rock 2kg All in one The alkalinity or carbonate hardnessBlack Venom Nano Rock is a striking black stone with a glazed surface that creates excellent color contrast in any aquarium or terrarium. Perfect for creating a high impact composition in a small space. Description Black Venom Nano Rock is a smaller version of our high impact Black Venom Stone. This striking black stone has a glazed surface and a maze like texture that adds an intriguing element to any small aquatic or terrestrial setup. It is perfect