Hmm...
Well, the reason I'm going with MH to begin with is for the shimmer, I really like the effect and I think with the surge I will get some interesting caustics. The other option is to find a 70W MH to use as an accessory light, to provide that shimmer, and use 6 T5HO bulbs. Unfortunately, I've searched and searched for 70W MHs and they are impossible to find, so that idea is out... unless I call these guys
http://www.venturelighting.com/NAindex.html. They have MH ballasts down to 50W, though I've never EVER seen a 50W MH bulb.
It all comes down to one thing... I need a wider tank
