Let me start by saying, these fish feeding rings are a LIFESAVER for anyone tired of cleaning up scattered fish food. I’ve used them in my 30-gallon community tank, and the difference is night and day.

The square-shaped ring keeps flakes perfectly contained - no more food sinking into plants where my guppies can’t find it. The suction cup holds strong (though some users report issues if water levels drop significantly). My fish quickly adapted to their new "dining area" and seem to prefer eating this way.

PROS:
- Effectively contains floating food
- Reduces waste and tank cleaning frequency
- Simple but clever rotating design adapts to water levels
- Comes with two rings (perfect for multi-fish households)

CONS:
- Some users needed to modify hole sizes for certain foods
- Can tilt if water level changes dramatically
- Thermometer feature seems fragile (mine broke during cleaning)

For betta owners especially, this solves the problem of food spreading across large surface areas. While not perfect (I wish it floated more consistently), it’s dramatically improved my tank maintenance routine. At this price point for two feeders, it’s absolutely worth trying if you’re battling food waste.