Is it a must to put actinic light?

[KapoKidd]

Hi,

Is it a must to put blue actinic light or can i just put my louhan purple light...?

[terryansimon]

urh. atinic light supposed simulates night time lighting effect underwater

not sure if purple luohan light can do the same

[SBS_Transit]

can just use 20klights , instead ok atinic ?

[mAriNe_enthusiast]

Actcnic will make a tank look nicer...more on viewing pleasure.

Not sure how it will look with purple lighting...

[blacknails]

I dunno about purple lighting but yap actinic causes your corals to glow... Plus it's more natural..

[Achilles Tang]

Actinics contribute a certain amount of lighting with suitable wavelengths for coral photosynthesis and is not just merely a cosmetic bulb.

If you are using FL/T5 bulbs, yes, get the actinics to add to the light spectrum.

If you are using wide-spectrum MH and your bulb is a pleasing white-blue already... then there's no need for additional actinics.

Those using more yellow MH needs something to balance the colour so more actinic bulbs can be used.