Is there a code to imput for the black friday discount? didn't see any and haven't gotten an email. Also wondered if the discount could be applied for out of stock items (looking for a handful of blue that are out of stock). Also since I'm posting this, wondering if 80 degree optics would be the right choice. Tank is a 54g corner tank and it will be going through 18" of water while being about 8" off the surface, so 26" from light to sand.