changing out crushed coral

[Nihoa]

thank you both very much. so when i put my water back if i go very slowly and pour onto a plate rather than direct onto the sand will it at least reduce cloudiness? with sand do you get a lot of suspended particles or is it heavy enough that it settles rather quickly?

and i also wonder about spikes. i should have enough bacteria in the tank on my live rock that the sand should start any crazy cycling?