acrylic is great for taking high def pics, lighter than glass, will not leak or crack ( unless somebody hit it with a hammer) compare to glass that maybe for like 5-6 years silocone seals needs to be replaced, and its true that its more clear than glass, if you got scratch in a glass, you cant remove it anymore compare to acrylic, acrylic maintains the temperature of the water more than glass... hope that answers it all,... ^_^