I have recently learned the hard way that everythign needs QT especially coral. I had sand polyps that I got from thatfishplace who is a realyl good store. I have a 10 gallon tank so I never used a QT tank.
Well after about a month (little less) the polyps all closed up and did nto come out for 1-2 weeks. So I started looking into it and examined the coral well. I have come to find out that it appears I have a Nudibranch problem. These little critters are eating and destroying the polyps and causign them to stay closed up. They must have coem in on the piece that I purchased and are not at multiplication levels that are high enought to cause real issues.
I have pulled several off with tweezers but need to set up a QT tank to move this coral into. Then I ahve to keep it there and do FW
dips with iodine supplementation each week or maybe 2 times a week. Hopefully that will kill any that are alive, and eggs will have to be searched for. As for the tank I am hoping that by removign the food supply (polyp coral) the nudibranch's in the tank will die of starvation. It is a real issue. Gettig nand settign up the QT tank will be the hastle. I will do the FW
dip prior to having the QT jsut to give the polyp some relief.