 Re: Dirty talk about halide 'nipples.'
It's just one more thing to throw in the mix. Whether or not it proves to be a MAJOR consideration in light placement is yet to be determined. Or will be determined by people who put their own lights in by hand.  Keep your oily fingers off those nipples 
Jim
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90 Gallon glass, 135#'s of rock and 2" sand. 2-250w 20k XM metal halides. 2-95 watt actinic VHO, 4 powerheads, Coralife skimmer. Maroon Gold Striped Clown, Blue Chromis, Kole Tang, Pygmy Angel, Serpent Star, Brittle Star,Gorgonians, Mushrooms, Yellow Polyps, Turbo Snails & Blue Legged Hermits. 20 gal sump with Caulerpa, Mag 7 return pump. | 
