Total of 96watts for a 29 gallon. General rule I have read is 3X watts for soft corals/LPS = 87 watts. Your tank is over 12" deep, I would think 145watts would be better. Granted you will only have about 26gallons of water in it after stocking max, plus if you have a 3" deep sand bed the light will only be penetrating 13" of water (if you do not use the legs and it is resting on the glass canopy). It could work I guess, that light fixture would be better on a 20 long. It may be a 30" hood, but the bulbs are only 23" long, so you will have a 3" gap on each side not fully illuminated.