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[APD] RE: Actinics and other things to darken (or lighten)

David - How many of what size CF over what size tank did you try? I'm trying
to get down to just two 96W CF lamps over a 90 gallon, so that would be four
tubes at two tubes per lamp. If I use one 6700K lamp (two tubes) and one
10,000K/Actinic combo, that would be roughly a 3:1 ratio of daylight to
actinic when counting individual tubes.

"A blue LED moon light after lights out gave me the same reaction as using
actinics/daylight bulbs in the daytime. Great for a reef, but just wrong for
a plant tank."

I assumed the same thing and ordered white LED moonlights here:


Hi Tom,
The tank was a 125 gallon. Six feet long. The lights were four daylight 96
watt CF and two actinic 96 watt CF, so I guess that means I had a 2:1 ratio
of daylight to actinic.

The use of actinic bulbs in planted tanks is just a matter of personal
preference. I couldn't stand them at all, but you may have better luck with
a lesser ratio than I had. The use of 10K bulbs is also a matter of taste.
They are whiter than I like. I had 10K Halides on my 240 gallon, and
replaced them with 6700K bulbs several months ago. To me, it just does not
look right to have your tank lit like it is high noon all day. Any Reefer
will tell you that 10K bulbs simulate full sun on the reef. My preference
for bulb temperature seems to be at 8700K or less, with 6700K my favorite.

I bought two Coralife moonlites (blue LED) and was really disappointed. You
will like the white LEDs. I use CSL Moonlites on my tanks, and they are all
white. Looks much more natural than blue LEDs.


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