Was at the LFS yesterday and mentioned getting a goby pistol pair. Because I'm a repeat customer the owner said, "you have a glass tank right"? I said yes. He said pistol shrimp shrimp should only go in acrylic tanks long term. huh?? Yeah when the shrimp get mature its not unheard of for them to snap their claw with such volume or a odd frequency that the glass will actually crack. I don't remember if it was the frequency or volume. Seemed like a line of crap but didn't make sense coming from the owner. He knew I would buy them from his store. Clue me in if there is such logic or not????????:eek1: :eek1: