Tank Rebuild

[marcingo]

Why would you want to scrub your live rock- I hope your not planning on using any chemicals. If you do you will make it dead rock. If you leave the live rock as it is, change your substrate or whatever you are planning on doing and then put the rock back in it wont cycle too much (If you can empty your tank water into a rubbermaid and submerge all the rock in it while running a small powerhead the live rock wont cycle at all once you put it back in). Also you can put your inverts in the rubbermaid as well. If you do this dont keep the stuff in the container for more than a day. If you want you can put a heater in but if your only changing the substrate then you wont really need one since it wont take too long and the water wont have a chance to get very cold.