This product is pretty expensive and doesn't remove the chemical like regular water changes but I thought it was pretty neat but all in all not worth it. Just figured someone else might want to take a look www.petsolutions.com/Aquarium-Cleaning-Machine+I58700108.aspx

I wonder how many people buy these? I certainly wouldn't bother, expensive gimmick if you ask me. You'll do just as good job with a gravel vac and a hosepipe. As long as you've got a good siphon, that will suck all the crap out.

Cant really see the advantage over a gravel cleaner and hose. Its rather large too. Waste of money if you ask me