Hey all, I am currently dealing with an infestation of Pycnogonids. For those who have not heard of these they are sea spiders and in my case Acropora eating spiders. They eat the flesh of acros and will cause them to STN. You can identify them by looking in the tank at night with a flashlight. Here is a photo I took of the spiders on a frag i used to have I have found them quite difficult to get rid of due to a variety of factors that I have observed over the past month or so. They seem to have to have a quick life cycle reproducing within a few days of hatching. They are nocturnal and only come out to feed on my sps at night and hide in the rocks during the day. Their rarity has lead to a lack of information on treatments. I have been dipping weekly using revive, bayer or iodine. All seem to work on them fine but its the fact that they hide during the day that makes it difficult. Im going to have to do my dips in the middle of the night probably twice a week if i am going to be successful. Which is a challenge because I work full time. I also have added a melanurus wrasse and am considering also adding a six line wrasse.