I bought a 55g tank last week and bought 2 24" versa-tops for it today. I got home and went to put them on the tank but they are too wide! Each opening on my tank is 23" wide while the versa-tops are 23 1/8" wide. Has anyone else had this problem? How wide is everyone else's 55g top openings? I'm thinking about shaving some of the plastic off the top of the tank to make them fit but I'm worried about the tanking being weaker.