I am truly sorry to see the devastation of your beautiful colonies, very sad 
. I do believe that a number of incidents have been documented here on RC where one friend has tried to save another friend's RTN'ing corals only to have the same thing happen to their tank within days of introducing the affected and dying frags. I had the same thing happen a few years back.
It seems like you have done everything short of removing all Acropora from main display and quarantining them. I would give that a shot. I found 10 AEFW on one stag in my tank a few months back. I set up a quarantine tank and removed every single bit of acropora from my main display...total pain in the arse...but I don't want to fight these stupid beasts over and over again. I did get all of my corals out and into the quarantine and dip process before they were showing any real stress problems or major tissue loss. Quarantine and dipping is stressful so I figured I would lose some of my pieces. I have lost one frag and one mini colony is almost gone, but what is left of it may be holding on at this point. At any rate, I am having a very successful time with the quarantine process and leaving the tank fallow of Acropora is getting rid of the beasties in the main display. I feel like I will definitely beat the AEFW.
This doesn't really address other corals like your montis showing problems. There is definitely something going on that is affecting a lot of your beautiful corals. It could be something spreading. Continuing to do water changes and try to save what you can...very frustrating though. I had a lot of problems in my current tank...for over two years acros would do well and then STN. It was mind numbing. Eventually a weird thing happened as I had exhausted all avenues of figuring out the culprit. I had an overdose of vinegar, and I mean major overdose (2/3 of gallon dosed into my system over a 24 hour period. This caused a huge bacteria bloom. For two days my tank was milk white. I did some pretty massive water changes over that week and eventually when it all cleared up, and I mean crystal clear, the acropora started coloring up and thriving. I surmise that something toxic was in my system that the more delicate Acros could not deal with. The bacteria bloom must have consumed whatever that was and now the tank is much more happy. Since then all acros have grown and done super well until the stupid AEFW. But, that is how it goes in this hobby, if it isn't one thing it is another, hehehehehe. At this point all of my acroporas in quarantine are doing well enough, just browning out.
I really hope you figure things out and can save some of your gorgeous pieces. Hang in there.
. I do believe that a number of incidents have been documented here on RC where one friend has tried to save another friend's RTN'ing corals only to have the same thing happen to their tank within days of introducing the affected and dying frags. I had the same thing happen a few years back.It seems like you have done everything short of removing all Acropora from main display and quarantining them. I would give that a shot. I found 10 AEFW on one stag in my tank a few months back. I set up a quarantine tank and removed every single bit of acropora from my main display...total pain in the arse...but I don't want to fight these stupid beasts over and over again. I did get all of my corals out and into the quarantine and dip process before they were showing any real stress problems or major tissue loss. Quarantine and dipping is stressful so I figured I would lose some of my pieces. I have lost one frag and one mini colony is almost gone, but what is left of it may be holding on at this point. At any rate, I am having a very successful time with the quarantine process and leaving the tank fallow of Acropora is getting rid of the beasties in the main display. I feel like I will definitely beat the AEFW.
This doesn't really address other corals like your montis showing problems. There is definitely something going on that is affecting a lot of your beautiful corals. It could be something spreading. Continuing to do water changes and try to save what you can...very frustrating though. I had a lot of problems in my current tank...for over two years acros would do well and then STN. It was mind numbing. Eventually a weird thing happened as I had exhausted all avenues of figuring out the culprit. I had an overdose of vinegar, and I mean major overdose (2/3 of gallon dosed into my system over a 24 hour period. This caused a huge bacteria bloom. For two days my tank was milk white. I did some pretty massive water changes over that week and eventually when it all cleared up, and I mean crystal clear, the acropora started coloring up and thriving. I surmise that something toxic was in my system that the more delicate Acros could not deal with. The bacteria bloom must have consumed whatever that was and now the tank is much more happy. Since then all acros have grown and done super well until the stupid AEFW. But, that is how it goes in this hobby, if it isn't one thing it is another, hehehehehe. At this point all of my acroporas in quarantine are doing well enough, just browning out
. I really hope you figure things out and can save some of your gorgeous pieces. Hang in there.
