first, get a bin. empty almost all the tank water into it, just leave enough to keep the gravel damp. move your fish into the bin, as well as any plants or decorations and the filter media. do not try to move the tank with anything in it, it will stress the joints and the tank will crack! there is no way around this, you must not move the tank with anything in it!
also, the Puffer is a brackish fish, the Lab is a Cichlid. most Cichlids, save a few dwarfs, are agressive, territorial, and large. Cichlids are freshwater fish. the Puffer needs some salt in his water, but the Lab probably won't do well with it. either way, the Puffer and Lab will end up fighting at some point, it's not a matter of if it's a matter of when. do bring one back to the store, or both. i've noticed you keep trying to get the large, agressive fish that can't possibly live together in a ten gallon. perhaps some more common and passive fish are what you need until you learn all you need to know.
not to sound rude or anything, everyone has to ask questions and make mistakes to learn