I just read a thread on another web site about a guy who had his 220 gal perfecto explode on him! The talk from other hobbyists started to center on the height of a tank with only 1/2" glass. I wonder if anyone had any bad experiences with any of the following tanks: 220 Perfecto, 210 All Glass or 180 All Glass. There could be some truth to the worry regarding 1/2" glass on large tall tanks. Should the new tank be reinforced with more sealer in the joints? Is is risky to have a 210 or 220 that has a height of 29" and 30"? Am I safer with a 25" high 180? I really like the 210 but can live with a 180 if it's the smarter choice.