Yes, It is best that you get either a 4x54w HO
or a 6x54 HO
lamp. The bulbs that I would recomend is 2x 420 actinic bulbs and 2x either 10k or 12k bulbs. That light that you have now would work out over a refugium in your sump. You can do a Retrofit if you are handy...something like over Mikes tank.