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Zapins · 01-18-2009, 06:20 AM

Actinics are not usable at all for plants. The light specrtem is fine tuned for what would be available under 10-15 meters of salt water. Plants don't grow underwater further than about 2 meters so the actinic color is unusable to them.

2x10,000K will appear slightly more blue to your eyes while 2x6,500 or 6,700K will be more orange-red to your eyes.

To the plants, 10,000 or 6,500 will be fine, it is a matter of personal choice, do you want more blue or more red? You can also mix and match, but one side of the tank will be more red and the other side will be more blue, which might look a bit odd.

01-18-2009, 06:20 AM	#17 (permalink)
Zapins Senior Member Join Date: Jul 2004 Location: CT, Connecticut Posts: 2,561 iTrader Ratings: 49 iTrader Positive Rating: 100% Plant Points: 97720	Re: CO2 tablets, Do they really work ? Actinics are not usable at all for plants. The light specrtem is fine tuned for what would be available under 10-15 meters of salt water. Plants don't grow underwater further than about 2 meters so the actinic color is unusable to them. 2x10,000K will appear slightly more blue to your eyes while 2x6,500 or 6,700K will be more orange-red to your eyes. To the plants, 10,000 or 6,500 will be fine, it is a matter of personal choice, do you want more blue or more red? You can also mix and match, but one side of the tank will be more red and the other side will be more blue, which might look a bit odd.