I guess it all comes down to color preference. I have a 20K 400W XM bulb
with 96W actinic 03 PC supplement over my 65G reef and I prefer the way it
looks to the 10K/actinic combo I had before (I do like the blue coloration).
I think it is a matter of preference but I also think my coralline algae has
taken off under the 20K light.

Lee

"Marc Levenson" wrote in message
...
Well, that is what I'm told, but I've not seen a tank yet that I like with
20,000K bulbs. Taking pictures in that blue lighting is tricky too.

Marc


Richard Ryerson wrote:

Just paid 125 bucks (plus 20 shipping) for a 250W 10K MH retro kit.
Comes
with a 18" batwing reflector, socket, 10K bulb, 10 foot ballast to bulb
cord, 3.5 foot ballast to wall cord and a magnetic ballast in a steel
case.

This is going over my 46 gallon bow front lagoon.

The question here is; Do you think buying a 20K bulb is worth all the
hype?
I am putting some really colorful clams in it soon along with some
gorgeous
blue and pink zoo... I want the colors to really "pop" and to get a good
shimmer.

-Rick

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