right now I have a basic tank about a two in bed of sand in my 55 a couple of live rocks and mushroom polup my fish are all happy and have been doing very well but I want to make it a little more natural for them so I have 50 lbs of live rock comming and 10# of live sand so I plan on removing a couple of other rocks out not live rock building some hiding places etc giving the tank a good cleaning then laying down the live rock. problem is what should I do about the fish when I do this I know it will probably take a couple hours to do I don't want to over stress them and I am mainly concerned about my Box fish she is doing really well but very skitish I don't want to stess her out for a couple reasons of course I don't want to poisen my tank. I don't have a quaritine tank to hold them in. do should I do it with them in or but them in a temporay holding area or take them to my pet shop for a couple days I should have all this stuff and be ready Thursday or Friday and should I let everything settle for a couple days before putting them back. I am starting to prepare a larger tank but I don't even have a filter for it yet and haven't even started to set it up.. the best I could do with it at this time is add some water and salt but I think this would be much more harmful please help.