"Best in Show"fish trainer Dr Dean Pomerleau. It also won "Best in Show" in the aquatics dept at the Global Pet Expo that's how I found out about it. The feeding wand could be made a little more durable but works great for the purpose.
This works best in a 5 gallon or larger tank. The description says a small bowl but if you want the full affect check out a 5 gallon tank. IT also has a 4.5 star rating on major websites. I give it a rating of 4 stars.