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anyone using 400w radiums?
so fgor the longest time ive heard the best bulb out there is a radium 400k ran on a hqi ballast.so i plan on upgrading in a few months and want to throw on a 400w dead center with 2x 250w on either side of a 150 gallon tank.now the 250's are DE phoenixs but i want to be able to really color up my corals as i plan on doing mostly sps.anyone advice for the bulbs or set up?
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