What is the best type of lighting?

[Coral Commander]

What would be the absolute best type of light to use for coral, anemones and fish? I am looking to buy a replacement lamp for my setup here and I have the following options:

6700K Daylight
6700K/10,000K Daylight
10,000K Daylight
460NM Actinic/10,000K Daylight
460NM Actinic
460NM Actinic/420NM Actinic
420NM Actinic

I was thinking of using a 460/420 lamp so that I can get a broader UV spectrum for the anemones and coral but I was afraid that it may burn my fish because of too much UV. I was also told that 420NM light is the best for photosynthesis in corals. Any ideas?

 

[d2mini]

IMHO, 10,000k daylight.

And then you would probably want to supplement that with some blue for visual reasons.

 

[Smitty]

+1 Dennis

 

[dcantucson]

I have 460/420 with my MH.
The bluer the light the slower the coral growth, but the nicer the coral looks.

 

[reeffreak]

What you listed sounds like PC bulbs.If you want the absolute best then I would at least switch over to T5-HO instead.....4 bulbs or more and individual reflectors.

If this is the common 4 lamp PC fixture.I would do 2-10k/420nm and 2-10k/460nm.

 

[Ulta]

+1 D2, Dcan, and Reef!

They are all correct :)