That reminds me of when I broke my 175g bowfront by oceanic. After moving the tank to a suitable location my girlfriend at the time wanted me to move it. During the second move, I saw a crack in the glass. Nothing shattered but there was a stress fissure in the back by the overflow. I called my dealer and they gave me a new tank! I only had 3 months left on the warranty too. Good luck to you, it always works out for the better.