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#2
07-31-2007, 01:49 AM
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-reply
-I've heard that for max. efficiency u shud change them every 10 months
but then u absolutely have 2 take into consideration lighting schedule, for me it's only 5-7 hours a day, but if u have sps corals then ur probably @ about 8+ hours/day so that cud reduce the bulbs span 2 only 6-8 months-mind you bigger bulbs (in wattage) tend to last longer, so good luck with that-
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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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