I think he would do well in a 55g with 4x96w PCs... He started in my tank with 5x55w PCs and I believe his color was alot more purple than that... Under the 14k Hamiltons he turned a nice purple but as soon as I switched back out to 10k ushios he went to a Greenish/yellowish color with hints of purple... I think its got a mind of its own... You are more than welcome to come check him out at any time... I am just moving over to more of a 100%
SPS tank and he doesnt like what i think is Extreme Lighting in my tank... I got it from Liveaquaria.com about 9 months or so ago.. He is extremely hard and has lived thru lots of abuse.. Shoot me a pm if you want to come out and check him out... I can also email you a current picture of him as well if you like..
James