Make sure this fits by entering your model number. AUTOMATIC FEEDING: The fish feeder has a timer, you can choose the interval feeding time according to the situation, you can set the feeder to automatically feed once every 12 hours or 24 hours, at the same time, you can also feed manually and experience the fun of feeding. TWO DIFFERENT FIXED METHODS: The feeder has 2 install methods for you to choose. One is to fix the feeder to the tank wall by using the holder. Another is to paste the feeder with double-side sticker on the tank cover.