Not reefing, but my 125 started to leak and I didn't catch it for at least 2 weeks. I drained the tank and resealed, problem fixed.......until a month later when it started leaking again. So, drained the tank, resealed, refilled and I was on my way. After the third time of it leaking I started getting really frustrated. Turns out that because of the first leak, my wood stand had warped, causing the tank to be un-level, putting stress on my seal. Well, my carpet didn't like all that water and now I have a 13"x2" strip in my white carpet where the stand molded.DOH!
Good news though, I bought a real stand and haven't had a problem since. (clap)