www.amazon.com... Features: 1. Indispensable Reason 2. Auto ON/OFF 3. 5 Levels of Wind 4. Easy to use: fixed by strong plastic screwes Suitable for fish tanks with sides less than 0.44 inches We hope:
If you put it on 12 hours, does it turn on and off every 12 hours or do you actually have to turn it on everyday. I leave for days at a time. Thank you
