In the past I have set up larger tanks. In short, I thought to measure, level, check flooring for weight... My new 29g has been set up in a bad place. Second floor...simple walk bys seems to shake, and cause compression issues with my tank. I need to move it soon. My question is: how empty is safe? My water parameters are p erfect. Almost 8 weeks aged. I don't want to affect my biofilter. The tank is on a very stable stand. Can I wait till my next water change...do a 50% and slide it very, VERY carefully? I also don't want to break it. The stand has felt on the feet, and I just need to slide it 6 feet across a hardwood floor. Sorry. For the placement of the photo, I'm posting from my phone. Any advice would be great.