Originally Posted by CaptainMogly
He is planning on taking out the rocks and cleaning them? Would this be detrimental to the tank?
He also has mentioned that he is getting new sand to replace the old sand. Is there any way to make sure that he doesn't nuke the tank?
If the sand isn't eventually cleaned won't the conditions worsen?
The only way to change the sand is to pull everything alive out of the tank and hold it rock and all in tank water. Then you have to empty the tank, dump the sand, and add salt water back in.
The sand isn't the problem in the tank. If any one of us disturbed the substrate in our tanks in a big way the outcome would be the same and we would likely nuke our tanks.
As for washing the stone, don't do anything but dip it in a bucket of tank water if you feel the need to clean it.
The most important thing to clean is the filter.