everything is stable, it is now around 5 months old...It is a very nice set up, and all other acros are growing like crazy! I mean, i have some that i got from a fellow member 3 weeks ago and they have almost grown a half inch! The green acros i got from pet palace are the ones I am having problems with...I dont believe they are healthy to begin with...All my parims are exactly where they need to be...just right.....I just dont think it was healthy to begin with maybe....plus, even when my systm was new, I got 75 lbs of live rock from a member who had it in his tank for years, and a 30 gallon sump, also, my DT is a 60 gallon cube. plus my skimmer is rated for a 250 gallon tank i believe...and in my sump is a great refugium with alot of chaeto live sand and LR. I shouldnt have bought the green acros, I didnt liek they way they looked to begin with, I mean they looked good, but there was a large part of the colony that had been dead for quite some time.....Oh well, live and learn...It also had white strands all over it before it started to go...This wont spread to my other sps will it? thanks, Mike