Quote:
Originally posted by cybrsufr
I could not agree more. I ran my 90G reef with 2x250DE 20K bulbsand the SPS grew and that is about all I can say. When I moved to my 180, I went with 3x400W Radiums and the Colors shifted very dramatically for the better, Growth EXPLODED literally (corals that grew 3" in a year while in the 90G, grew 3" in 3 months in the 180G). Granted there is more water volume, flow etc, but the lighting is so much better. Coverage is better with less shadows and dead spots. DE bulbs are a point light source and therefore produce a narrower beam of light when compared to a SE bulb.
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I have a question regarding your 180. I am in the middle of setting up a 180 and havnt decided on lighting yet. I love the look of MH's so I am going to go with those, However I really dont want to get a chiller at this point so I dont want the water to get to hot. How High above the water do you keep your 400's, I was thinking I would get 250's since the tank is only 24 deep.. Do the 400's really put off less heat?? I was also planing on supplimenting the 250's with t5's, are you doing this.