I knew I had copepods because I bought some really nice cured rock from a local reefer a little while back. But, I hadn't seen any until recently. A few weeks ago, I saw a few in my refugium.\n\nToday, the walls of my refugium are just covered in copepods. :mrgreen:\n\nSo, will they get blown out of the refugium and into the tank? I know most fish will eat them.\n\nDo I want to stir the water in my refugium? Or slosh the cheato around to knock them loose and hopefully get a few of them into the overflow where they will end up in the tank?\n\nOr, just let them be?\nWill they eventually get into the overflow on the refugium and get "naturally" deposited into the tank over time?\n\nEdit:\nI got fresh coraline growth too. Spotted it on my skimmer plumbing and on one of my rocks. It's pinkish/purple in color and crusty like hard water stains that won't rub off.