What!
Why!?
Your tank is one of my all time favorite.
Such massive colonies.
It was one of my favorites too ;)
I wish I knew what the cause was but there were a few people effected by the "unknown" in my area. Colonies started to STN from the base which was the common problem we all shared. In addition to that I wasn't paying attention to chunks of food that would lodge within branches and decompose causing a problem in itself. Maybe one problem fed on the other but Ive been dealing with this for at least 3 months.
Nothing happens fast in reefing right LOL, and this was no different. Gradually one colony after the other had it happen, I thought, flow, bacteria, well I considered EVERY possible idea.
I could spend the next hour typing what all I did but it wont help anyone since Ive no solid definitive answer as to "what happened". One of the stumpers was once I cut the dead area away, the piece healed fine and all was good, frags I made did fine.
I look at it like this, the tank was "full" I couldn't add another acro if I wanted, the pieces were so large they blocked everything so all I could do was sit and "enjoy" the tank by viewing it. I'm probably not alone but if that's all I can do, that's not enjoyable to me :confused:
I lost very few pieces, and the ones I did loose weren't that special other than being 20"x24". I was able to keep many softball sized or larger (a few smaller) pieces so now I get to redo everything and it wont be long before (IMO) it'll be beautiful again.
I also lost my regal after many many months, my femininus wrasse jump so its been a few months of !@#$%. I got rid of the Queen Angel since I now need to restock so I figure get rid of the Male Bellus and the ornate- I unload fish on a regular basis, we call it the "Junkie Shuffle" at my house :)
I had added a trio of Choati Wrasse that are doing great ( they were the reason for getting rid of the ornate) and Ive also added 5 fathead anthias that are doing well too.
I'll post a pic of whats left so I can have a before and down the road we will the "after"
Well that's my update :(