I set up this 55 for my friend only to find one of the seams was leaking badly fearing a complete collapse I grabbed a spare tank of mine transfered all his water into it and then his fish. I tore down the whole tank dried and cleened it and re-affixed the leaking panel and replaced all the old sylicone. We allowed it to cure for forty-eight hours leaving his fish in my tank. once cured we set it all back up practically brand new now. With all the stress I'm sure all this "habitat instability" gave the fish he didn't lose a single one.