I've had a 120gal reef ready for about 6yrs with about 150lbs.of live rock and 4 inches of crushed coarl and lots large of fish.The water that i used is from my well that has levels of nitrate.Know i would like to turn it to a reef tank what do i need to do,i donated all of the fish,the tank is still running and the skimmer is still pulling a lot of gunk and the levels of nitrate are extremely high.My question is, is the liverock any good for a reef or is it saturated in this soup of high levels of nitrates.I was thinking of scrubing and dipping the rock in buckets of clean salt water and removing all my blue plastic balls that are in my sump.I know that i'm starting all over is all this a waste of time or should i buy new live rock and sand.My lighting is power compacts with 4 96wt.bulbs is that plenty for a reef, i need help i'm totaly confused