it gives the tank a more pleasing look, 40 of my 120W are actinic, even with
all powerglo's the tank looks yellow, now its very pleasing, I also have the
actinics and not the powerglo's turn on in the morning and evening for
sunrise/sunset

So you just like the blue color. In that case, get whatever's cheapest.


Leigh

http://www.fortunecity.com/lavender/halloween/881/