I purchased this piece of sps one and a half month ago. In the first week, it show good pe. But after about 1 week, it show very poor pe. I thought my tank is new so i did not notice these bugs.. Until yesterday I take a picture with flash light and I found that there are many tiny black spot on it, they definitely are bugs since there are lost in tissue surrounding these bug. They are 0.01 cm or even smaller, hard to see it bare eye. And I cannot remove it by using toothpicks, it sticked on the sps. I use some reef dip to dip it but its seems not work, they not fall down. And suggestion on what it? And how to kill them? thank you!!:crazy1: