sundance2011
Reefing newb
Have two questions. First the impeller seems to be just going back and forth, not spinning. Is that a problem with the impeller or the works in the head?
The UV lamp, does it emit any visible light and if not how do you tell if it's on and not burned out?
Thanks
The UV lamp, does it emit any visible light and if not how do you tell if it's on and not burned out?
Thanks