I recently gave up on my 72g predator tank beacuse every fish manages to last no longer than 2 months. I want to use some of the LR in that tank in my 110g reef. Should I just dip the LR in FW to make sure nothing transfers over? I know it will probably kill everyhting off the rock but I have close to 200lbs in my 110g already so I"m not that worried about it growing back.