I got a 75 gallon salt water tank from a friend and want to use it for a fresh water oscar tank what can i re use some of the things in it . Can i reuse the sand if it is washed good and what about the rocks he had in it the tank sit empty for about a year. all the rocks were removed and sit out to dry for about a year. ![Stick out tongue :p :p](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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