Review on Black Zoo Med Aqua Cool Aquarium Cooling Fan: Enhancing Efficient Temperature Control by Milton Wolf

I was careful when ordering as this item looks like a cheap fake on ebay. Make no mistake, it still feels cheap, but not crappy cheap. It has a movable nozzle so you can adjust the airflow. The only downside is a LARGE suction cup, not two small suction cups and an on/off switch that is too small. Otherwise it's pretty useful and my tank dropped 1 degree, which isn't much but makes a difference.