Which actinic light??

[echoofformless]

I'm starting up a fowlr that may upgrade to a small reef in time.


I'm confused by all of the different actinic bulbs (actinic blue, actinic 3, 420 nm, 460 nm, etc).

What is the difference and purpose of the individual bulbs?

Which do I get?

[Reefscape]

Actinic bulbs are there for your viewing pleasure, to make the corals floresce....I dont even run any on the main reef or the nano...