Quote:
Originally Posted by Reef junky 305
Just don't know wich are the most blue I'm thinking 420 are all blue right
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Personally I have liked the look from 460nm blue PC bulbs more than 420nm. I find that the 460nm blue shows off the corals better.
You could always get from Marine Depot a Dual Blue (460/420) which is one tube bright royal blue and one tube an actinic soft purple.