Saim Automatic Fish Feede Battery-Operated Aquarium Fish Feeder Automatic Fish Feede By adjusting the slider, you may increase or decrease the amount of food dispensed per rotation. Maximum 4 feedings per day. The logo "Lo" displayed on the LCD indicates the power is low. Simple operation and installation, manual and automatic Suitable for dry,loose flake and pellet,is super affordable and a great way to go away for the weekend and have peace of mind that your fish will be alive