Received the Tunze Nano skimmer yesterday. First, who designed the mounting brackets? They should be fired...just plain poor design. So I mount the unit and plug it in....no water/foam at all making it to the base of the cup. Adjusted the screw max one way then the other and still nothing. Remove the skimmer and remove the base plate to get to the pump. Find that the output nozzle is broken off the pump....nice. I will be returning this skimmer and trying the AquaC Urchin instead. I know this is most likely an isolated incident but still disappointing/aggravating.