Contemplating 2 for the new tank.....Having 2nd thoughts on running 3 OM..... Not completely sure if they will handle and stay together on 1" acrylic??? A lot of claims they will, but I'd hate to spend that kind of cash and they fall apart.....I'd be paying their home office a visit, and demanding my cash back.....Still have thoughts of the crazing incident a while ago, and curious about as well.