I got a 75 gallon full setup a few months ago but the light fixture that came with it doesn't completely work. Only one light will come on which has been fine so far. However, I want to start creating a reef and know that I need actinic light for that. I took the fixture to my LFS and they said that only one of my night LEDs was working too. My tank is 48 inches and any reccomendations would be greatly appreciated.