Corner stone with a great indentation for the placement of corals or plants in a corner of the aquarium at a random height. The Delta Rock can also be filled with sand and it can be populated with marsh plants or it can be used in marine water for mangroves. It consists of a highly porous ceramic stone with Live Rock Function and has a great indentation to accommodate corals or the root section of plants. It enables the highly decorative integration on the aquarium glass pane. Thanks to the two strong magnetic holders, the Delta Rock is suitable for aquariums with a glass thickness of up to 12 mm (1/2″).