Quote:
Originally Posted by Fish
I think it is probably because VHO actinic is the best looking actinic light and PC the worst!
- Chad
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I don't know if that is necessarilly correct. There are many so called actinic PC bulbs that are just blue, so you get no fluorescence. You have to get 460nm true actinic bulbs. I have some of those, and they do indeed cause corals to fluoresce.
