In article , Jay wrote:
Many of the Coralife 50/50 lights come with the blue/white

All 50/50 lights are 50% actinic(blue) and 50% white. Hence the name.

They are not as practical as a two bulbs: one actinic, and one
white. The actinic tubes don't last as long as the white so you end up
changeing the 50/50 when the white side is still good.


To the original poster. You probably don't want a 50/50 bulb. It is
very blue and will make you fish look funny. If you want to see the
real colours of the fish get a light that is 5500k to 6500k with a
high CRI of 89+. CRI is colour redering index. The Sun has a CRI of
100. You can find these bulbs in a hardware store for much less then
in an aquarium shop.