Need to do a 'remodel' on my tank. Ideally I'd like to take every piece of rock/coral out of my tank, most of the water, scan the bottom for any think that shouldn't be there ("whoops how'd that piece of copper wire get down there" type stuff), rebuild my reef-scape, then put the water back in, all in a 1 day affair. However I'd like to minimize fish stress, ideas so far are 1. leave them in there, perhaps even put a rock "cave" in the back corner just so they have some place to hide out 2. remove them, when I'm done, put them back. 3. ????? Other potential ideas would be nice.