mine green one I have had for 7-8 years, I had 2 red ones, I ran 2x250 over the center of the tank and 2 ho
T5 on the back for some color, when one of my T5 burned out, I just put a pc
light on till my new light came, the the red ones split, the main light didn't change but swapping out a T5 for a PC
sent them into survival mode, in a day or 2, they are so sensitive to environmental changes. You really need to have an ato and a temp controller to keep them happy, and conditions stable.