I have a 55 gal. saltwater tank. My lights are a Marineland , 48” led setup which sits on top of the tank. There are about 20 of the lamps which are burned out, and marineland does not offer replacement bulbs. I have live rock, and am looking to grow corals. I know there are different products out there, but am looking for some advice on what to get before I upgrade my lighting. Thanks.