I currently have a Finnex Marine SE 247 light fixture. Its great for FOWLR and some hardy corals, but isn't really meant for a reef tank. Its sitting on a 4 foot 75 gallon tank. While I know I need two of these lights, I have an opportunity to get a Radion XR15 Pro G4. The spread is 24x24 which is why I need two of them for the four foot tank. However, would a single unit be better than what I have now and allow for some corals in the center of the tank?

