The Eheim Chimney (auto feeder)

To feed the tank automatically each day, as well as when you are away due to travel, the Eheim Autofeeder drops in food to feed your reef.  The Eheim Chimney that I created keeps the food in one spot in the tank, allowing it to saturate with water and drizzle down into the water column, instead of drifting along the surface into the overflow where it is wasted.

http://www.youtube.com/watch?v=ZTxGWdW0gi8