shooting

My protein skimmer that I got for my Oceanic Biocube 14 is not bubbling...

I just bought a used Corallife CF 24 inch with twin 65 watt bulbs, It was working fine when I picked i up . Light fixture was dirty on the inside with dirt and dust, I dissembled the whole fixture without removing or disconnecting any wires. I put it back together and now it will not light. Its...