Dez - I just started a 120G with 100+ lbs of rock that was cooked for 3+ years at the right temperture and 2 MJ1200s for flow. After 2 months (when all the die off occured) I didn't even do a water change. My bad. After 3yrs cooking, I just put it the new set-up, with all new water and the left overs in the sump and everything has been good. Keep my Alk and Ca at slightly elevated levels in the new tank and the coraline came back with avengence almost immediately with just T5 actinics for 2 months. Finally got the halides going and added some SPS frags this month (thanks Aquattro) and so far so good.
If money was no object I'd buy a box of new live rock (cure it) and add it to the sump to re-populate the old rock. But the money tree isn't bearing fruit yet....
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