I have a friend (who was actually the one who got me started with this hobby about 2 years ago), who has a 12 gallon nano thats he's going to give me. The tank has completely taken a dump over the past six months and he let everything in it die and has not done anything about it. The pumps are still running although the water level is so low it barely makes it back to the return, and whatever lights that aren't burnt out still come on every day. But it is nasty, the glass is so brown you can't even see inside and I'm afraid of what's going to come out of it once I clean it out. I was planning on taking everything out of the tank and maybe cleaning it with a bleach/water mix and starting the whole thing over with a new cycling process. I plan on replacing all the filtration in the back with LR rubble, and a brand new sand bed, but what about the existing live rock thats in the tank? Do you think I should take it out and scrub it off and stuff (not with the bleach mix) and leave it out to dry while I clean the tank, or should I maybe leave it the way it is and keep it in a bucket of saltwater until I get the new water and sand to start the cycling process? I wasn't sure if there might be some unwanted kinds of bacteria on the rock at this point, but then again I wasn't sure if I might need some of that bacteria for the cycling process? Thanks for any advice.