Yes water changes will help a lot. When you will it back up have someone hold a plate under the water going into the tank so it doesnt kick up the sand as bad.
It could be a day or so before its clearer and maybe a few before its normal, and fish can survive when rivers and such are muddy but i would get the water as clean as i can before i add the fish.
Hope this helps,
Ryan
It could be a day or so before its clearer and maybe a few before its normal, and fish can survive when rivers and such are muddy but i would get the water as clean as i can before i add the fish.
Hope this helps,
Ryan