I am guessing that you have a mix of daylight and actinic bulbs?
I kept a Haddoni in my 75 ( think it is about 18 inches deep ) with 390 watts of PC (( 50/50 mix of bulbs )) for a couple of years. It did okay, but is doing a lot better under MH. Your might do okay, but wonder if it will lose some of its color. The depth of your tank is my main concern (( and the mix of bulbs )), may want to start thinking of upgrading.
Also, for a shorter period of time I had my blue one in that tank (( before I upgraded lights )), once I upgraded it became a very nice deep blue --- as opposed to lighter blue -- really prefer the looks of it now.