Has anyone used these things? Do they work? I was thinking of putting them on my x-mas list. It would really help out in the summer months when we are gone alot.

yes they do work, but there are alot of risks. It would be better to just hire a ***goood**** friend to feed them for you.

if you are not gone more than a week or 2 at a time i wouldn't honestly worry about it. fish can go awhile without food, and the tanks will stay cleaner.

I've only used an automatic feeder when I went on vacation for a week. Couldn't tell yah if it worked or not. lol