Is this RTN??

nycbob

nycbob

Active Member
hard to tell. if its from the bottom up, then its receding, but not necessarily rtn. rtn happens within a day. if it is slowly receding, then it could be a water issue. is it getting direct water flow? if so, change it to indirect.
 
familiar1985

familiar1985

Member
k then its not rtn. Its been receding slowly over a week. Would it help if i kept it in a seperate countainer with fresh saltwater?
 
zanoshanox

zanoshanox

Active Member
I dunno from the acros i've had that RTN'd its like the living flesh of the coral just peals off and floats away from the white skeleton...
This looks like something else. Browning out maybe?
 
t316

t316

Active Member
I just had this happen to an "elogance" that I recently bought from a lfs. It was beutiful in the store, and great the first day in my tank, but then slowly the base started turning white where it was attached to it's shell, then slowly over the next week, small pieces just detached and drifted away. I moved it to another tank, but it just kept doing the same thing until it was totally gone....
 
nycbob

nycbob

Active Member
when acros started receding from the base slowly, its normally water parameters or flow. freshwater isnt gonna help. what is ur alk or calcium level? do u hv any sps in the tank? acro or staghorns r pretty easy to keep when it comes to sps.
 
familiar1985

familiar1985

Member
my alk is 12, calcium is 400, Magnesium is 1110. I have other sps that are doing ok (birdsnest, stylophora, pocilopora and 1 more acro)
Im using reef crystals salt. The alk is 12 before it reaches my tank.
I meant putting it in fresh saltwater. Maybe it likes the fresh reef crystals water better then the water in my tank?
 
florida joe

florida joe

Well-Known Member
Just my boring two cents
It is very common to have Acropora ssp. die from RTN. It is widely believe to be caused by a causative pathogen, Vibrio Vulnificus hence bacteria. If you suspect RTN you should remove the coral from your DT as soon as possible to avoid triggering RTN in healthy corals. You can also brake off coral branches well ahead of the area where the tissue loss has begun. There is a protocol involving the antibiotic chloramphenicol that is shown to be effective in some acro treatment. RTN is frequently the mode of coral death, especially in thin tissue corals, and has been reported in numerous studies on the effects of various stressors on coral populations
 
florida joe

florida joe

Well-Known Member
Fragging the coral is in fact what is done when antibiotic is not a viable choice although the success rate is very low it is better then nothing
 
veni vidi vici

veni vidi vici

Active Member
Originally Posted by familiar1985
http:///forum/post/2854943
wow that is quick. My acro definately doesnt have RTN. Would fragging it still be an option?
I could be STN or something else,like lighting ,water quality , parameters,flow...............Its also possible that its a wild acro that just isnt going to make it no matter what.
 
veni vidi vici

veni vidi vici

Active Member
Originally Posted by familiar1985
http:///forum/post/2854953
How does RTN happen like that? Was it out of nowhere or Stressed? Thats scary.
It was a new piece , maybe a few days in and just decided it didnt like its new home
some times it could just be it got knocked over or something nipped at it,sometimes it just happens. How long has your tank been up and running?
 
nycbob

nycbob

Active Member
that could be the reason then. 7 weeks is very new. water parameters and such arent stable yet. most people wait at least 4-6 months b4 adding any sensitive corals.
 
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