KENRC51 What is a PINK light? I do not recall seeing that option.
SHINDROME What is a 50/50? I know what actinic and 10000 k are.
Note: I have 2 -36"bulbs spaning the 6' tank. It seems bright enough, I moved up to 6000k and it did help the fish pop more, but I want even more, but I do not know if higher "k" will do it.