Designed to help maintain a regular programme of feeding and maintenance to improve aquarium efficiency and keep fish happy and healthy for longer. The biOrb Timer can be set to simply remind the biOrb owner when to feed the fish, replace the filter or carry out a partial water change. Soft touch push button operation is simple and easy to use. Clear symbols light up and flash to indicate the task due. A choice of settings allows the Timer to be used for baby biOrb, biOrb 30, biUbe and biOrb 60 aquariums. Full instructions and 2 x AA batteries included.