Hey guys I'm just about to start up my 30 gallon tank again. I had it going good for a while but I had to move out and during the move i lost all my live stock mostly coral and CUC. Anyway I'm thinking about doing deep sand bed with live rock to start the tank off. My question is I had my live rock sitting in the tank with no filtration and no flow for about 2 months can I still use it ?