Would a 40" 2X150W HQI GIESEMANN be sufficient llight for a 48" 75 Gallon tank with some SPS, LPS, and softies or would the light fall off be too great at the ends?

Is any 150Watt fixture sufficient for a 75 gallon mixed species tank?

About decided that piece mealing a tank together is just a pain and may wait and buy a complete setup from someone MAAST.

Thanks,

Lee