Black light over aquarium

It's fun for kicks and giggles. Spooks the fish out when
they see the corals glowing in the dark.

Wayne Sallee
Wayne's Pets



Croosh wrote on 3/2/2006 1:20 PM:
Hi people!
Couple of days ago Discovery HD channel shover a film about barrier
reef (I missed the name though). The point that got me interested was
that some corals can take available UV light and transform it into
usable wave legths.
In my tank I notticed that star polyp, which looks just yellow under
10KK MH looks flourescent-green under "deep blue" actinic. Button
polyps get nice green ring around their mouth under actinics too. (This
isn't visible under MH + actinics, and becomes really apparent when MHs
go off about an hour before actinics, and is not as prominent inthe
morning, when actinics come on before MH.
Has anyone tried to use "black light" over a tank? Is it better/worse
than actinics? Is it just a stupid idea overall?

Thank you
Yuriy