I have dipped 50% of the time until recently when I had two tanks come down with flatworms. The 20g was a real pain to get rid of them, took weeks of treatments. The 125g luckily I caught in time so one treatment got rid of those.
I use coralrx as well. I use a separate little bucket to dip them in. About 10 minutes or so, I swirl the coral a bit too and then I have a container of tank water which I use to rinse off the coral. Then it goes in the tank.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.