http://freshaquarium.about.com/od/fe...edingrings.htm

with 2 overflows close the the center of the tank, the feeder would dump the flakes and pellets just to be sucked up by the over flow....
I bought one of the rings and placed right under the feeder,
keeping the flakes in place till they soaked up and sank. My vlaminigi finally grew the courage to swim up and feast on the food in the ring before anyone else... It was a kick to hear him chomping....