Red Sea is a joke. This happened to me as well. I bought a tank that was under a year old. The previous owner saw some concerns with the seals slightly separating and Red Sea assured him that it was well under spec and there is no issue. Upon taking ownership, I emailed Red Sea the same while the original owner was in town, (he was in the middle of moving out of state), again RS assured me there was nothing to worry about and it was well within spec. A few months later, still under a year old, it got worst, emailed RS again, now they tell me they can't help me since I'm not the original owner and the original owner had now moved away. So, I had to buy a replacement tank. Red Sea knows about their seam failures and refuse to accept responsibility for poor quality issues. I now own a CDA tank that is built in Texas and the quality difference is night and day.