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#1
09-19-2007, 02:56 PM
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I know that ballasts will also make a huge difference. I run 20K single ended bulbs on a HQI ballast meant for double ended bulbs. The SE bulbs run a little hotter on the HQI ballast than would the intended DE bulbs and in turn, the colour gets shifted down by a few K. My 20K's look to me more like a 13-14K bulb.
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Do or do not....there is no try. 
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#2
09-19-2007, 10:52 PM
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ya thats a good way too describe them, kind of close to 14k, next ones are double ended 14k hamiltons. on the other hand my corals are doing great under them, great color and growth so no complaints, just was kinda going for a nice blue hue, thanx again for the quick replys guys
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33g fowlr / 20g sump / 400 watt pendant / Euro-Reef RC80~~~~lavendar tang, lemon butterfly, snowflake eel, hawaiian spotted puffer, tomato clown, chomis.. My reef~http://i297.photobucket.com/albums/m...-/P4300459.jpg
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#3
09-20-2007, 10:13 PM
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what brand of of and how old are they??
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500G Mixed Reef  __________________________________ Electrician, Electronics Technician, I can help with any electrical questions you might have!! __________________________________ Kevin
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