Ok so seems like 30" fixtures are kinda RARE in the market so I am thinking of 24" /36" quad fixture whose legs can be adjusted to fit 30" length. I have decided to get either 36" Odyssea quad fixture or the 24"/36" Fishneedit quad fixture:
http://www.aquatraders.com/36-inch-4...re-p/52324.htm
http://www.fishneedit.com/3ft4bulbs-with-l34.html
Will 36" fixture be overkill for my shallow tank? Anyone got any experience with these fixtures?