Anybody here own a chiller? If so, which one and what do you think of it? I own the Coolworks chiller with controller. When my tank hits 83 it will bring it down to 79 or so after a bit. It's ok for my 20 but I wouldn't go bigger with it. I need to make a new mount for it - this is the hard thing with it as it is ackward to mount unless you drill a hole in the glass.