In the used 250 W MH set-up I got a set of 10000K Ushio bulbs and 10000K Aqua-line bulbs. I hoped two 54W actinics would off-set the yellow. Not even close for either bulb. I bought 14000K Phoenix's the next day. Whether it is 10000K or 14000K IME the actinics are totally overpowered by the MH's and do not accent the corals at all when the MH are on. My actinics only come on when the MH's go out for a dusk to dawn effect.
On the topic of 150W vs 250W. How deep it your tank? 24 inches? Go with 250W and save a future upgrade down the road if you catch sps fever.
FYI: 14000 K Phoenix bulbs are one of the most popular DE MH bulbs on the market. Some people find them "too blue." I will buy them again.
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