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Discussion Starter #1
I have a current 30" fixture w/ 2 65watt pc's. one is a 10k and the other is a mixed actinic. 420/460. current sells actinic bulbs of both the 420 and 460 variety. my question is this: which is a deeper blue simulating a deeper reef? 420 or 460? Thanks in advance.:)
 

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420 is a bluer light.I don't know if it's darker and I don't think you'll see the difference between the two either.
 
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