Quote:
Originally posted by dukecola
You are so right!
I grew awesome corals with three 175W 5500k Hamiltons. I'd be laughed at today for using them. Heck, we were thrilled when the 6500k bulb came out! When will the insanity end.
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Well, this should be enough evidence that corals do actually understand PAR. :-) its the spikey blue spectrum that they could care less about.
sanjay.