blazeyreef
Aquarium Advice Addict
at the BEST LFS we have here (it really is AWESOME... better than the one close to me...) they have a 150 (or maybe its 180..I dont remember) gall reef, and their polyps were growing on the glass wall ( on the back) of the tank...and it looked really neat...so I diddnt know that they could grow on a verticle, glass surface