Well, this sucks, but two days ago I started to lose my SPS one by one. At this point approximately half my colonies are gone, with another one beginning to show signs of going. I am experiencing RTN, and in addition, the affected colonies seemed to be creating lots of tan-colored slime before perishing in 24 hours or less. I've lost everything from tiny colonies and frags to mature, happy colonies the size of softballs. I had Aquatek test my water, and the tests came back fine - nitrate was nigh undetectable, no phosphates, slightly low KH which I dosed for upon returning home. They suggested it might be something bacterial, and possibly pathogenic, due to the rapid rate at which this is tearing through my colonies. I'm kind of at a loss as to what should be done, aside from water changes. Does anyone have any suggestions?
This may be the last straw for this tank, and if I lose all my SPS, I am considering tearing it down and selling it. With that in mind, I would hate to sell my live rock or livestock to anyone if this might be something that could be contagious.... Should I be worried? If so, I might save my rock, bleach it, dry it and use it to start a new tank as dead rock and seed it with bacteria from a bottle (a la MCallahan).
Any suggestions from you pros would be welcome, but at this point, it's breaking my heart and I may throw in the towel.... If my Hawkins Enchinata goes, all bets are off.
Tank stats: 150 gallon tank with 75 gallon fuge/sump with LR and chaeto, running over a year, 150+ lbs live rock, 2x250 watt MH with supplemental T5s and PCs, Bubble Magus skimmer (a huge one), Tunze Wavebox plus a pair of Koralias for flow..
Recent changes: added a bubble tip anemone that is nowhere near the SPS and has not gone near them (completely on the other end of the 5-foot tank)