I’ve seen varying suggestions from 6500K all the way up to 20,000K for the RBTA, while many agree that soft corals adjust and thrive under most lighting situations. 4) And finally, please correct me if my thinking is in error, but higher wattage Compact Fluorescent Lighting doesn’t mean more light intensity, it only means it’s a longer bulb. Roughly, I see that CF lighting provides 3 watts per linear inch per bulb (34 inch bulbs are 96 watt, 21 inch bulbs are 65 watts and 18 inch bulbs are 55 watts) Given that the light would be positioned directly above the coral/anemone in any scenario, a 192 watt, double bulb fixture and a 130 watt double bulb fixture would provide the animal with virtually the same light intensity? Sorry for that question, it’s splitting hairs I realize, but I see people offer advice on 23 inch high tanks with 220 watts of CF and call it good, where as 130 watts of CF