I think my tank is crashing:

[pulpfiction1]

at this point i would agree with the 50% water change,lots of carbon,prime,more air ie:skimmer wide open,air stone etc... and i would probably do it a second time in 48 hrs,things are dying there,short of a whole different tank to put everything in like a quarantine tank you have nothing to loose at this point (actually everything unless you fix the problem) from the looks and description you gave

 

[daleomilla]

One of my BTA seems to be falling apart? and one sps is bleached

the BTA if it is dieing it will do that to a tank. take it out and do about 50% water change and it will be ok.I had the same thing happen and that is what I did and all was ok after that.

 

[shipwreck]

Do you have a clam in the tank?  A clam spawning in my 120 caused all the same issues.

 

[partydiver]

Thought I would update, Tank is normal again:
-My anemones falling apart were it losing all tentacles and some how now there is a bunch of mini BTA's  :? , The 2 smaller ones withered away
-Lost 1 sps which was in a rough shape to begin with
-1 SPS might be gone but still has some colour so might still have it, while my brown/red sps grew even more
-Kenya trees and xenia are regrowing their stalks and almost back to normal

- Now I seem to have this weird orange hair like algae growing on glass?

 

[reeffreak]

If you nems on its way out I would take it out of the tank if it's dieing it can and will wipe out everything

 

[partydiver]

They are fine now but when they were doing that falling apart thing it just lost its tentacles and now some how the tentacles are new nems