tri-color valida acropora in trouble?

ser-specv

ser-specv

Member
I got this big frag a few days ago and when i first got it all the tips were blue/purple. Now about half the tips are bleached out (turned white). The damsels have been picking at, not sure if it has anything to do with it. The water parameter are fine... Any suggestions?
-46gal
-4 sets of T-5s
-Nitrite: 0
-Nitrate: 20
-pH: 8.5
-Calcium: 420
-Alk:180ppm
 
9supratt4

9supratt4

Active Member
How many days has it been since it started doing that?? Looks like RTN or STN.
I'd personally frag the good pieces in hopes to save it.
 
reefkprz

reefkprz

Active Member
it doesnt look like rtn to me looks like the flesh is intact just bleaching rapidly. if just the tips were that color I would say it was bleaching before you got it.
 
ser-specv

ser-specv

Member
Originally Posted by reefkprZ
http:///forum/post/3184959
it doesnt look like rtn to me looks like the flesh is intact just bleaching rapidly. if just the tips were that color I would say it was bleaching before you got it.
Actually no, it was nicely colored all the way. This morning I noticed it bleaching rapidly. Almost like the outer layer just melted away... Is there anything I can do? What r the chances of it surviving something like this? Here is a full tank pic from yesterday where you can see it in the left corner doing just fine.

 
9supratt4

9supratt4

Active Member
If thats it in the bottom left of the picture....and you noticed that it started bleaching rapidly starting this morning....I still stand by my opinion of RTN.
I don't see any flesh still on the coral.
 
ser-specv

ser-specv

Member
Originally Posted by 9supratt4
http:///forum/post/3184969
If thats it in the bottom left of the picture....and you noticed that it started bleaching rapidly starting this morning....I still stand by my opinion of RTN.
I don't see any flesh still on the coral.
I agree... should I just take it out now since it's pretty much a goner at this point, right?
 
ser-specv

ser-specv

Member
Never mind... It's a goner. I just took it out. It stunk up my water really bad!
I need to do a large water change soon.
I hope this doesn't affect the rest of my tank!
 
stanlalee

stanlalee

Active Member
thats definately RTN and there's not much that could have been done other than fragging the uneffected areas before they were affected and hope they stay unaffected (I've got a peice now that 95% RTN'd but I was able to save a 1" frag I've had for 6 months with no ill effects). thats the risk of buying a colony grown and/or adapted in somebody elses tank or ocean (lighting, flow, parameters ect). small aquacultured sps frags rarely do that unless they just arent hardly species (validas are about as hardy as sps come). large, maricultured and wild colonies placed in a different (and relatively young based on the look of the rocks/walls ect) environment is not that uncommon (often times they do fine and vise versa). the rest of your livestock will not be affected. sweet rose BTA BTW!
 
reefkprz

reefkprz

Active Member
I'm sorry I was incorrect. I was a little over tired looking at that picture last night. I'm sorry.
 
nycbob

nycbob

Active Member
the coral is done. by the time u get this email, the top is probably bleached too. i dont think fragging the top off will help u in ur situation. is this a new setup? bc its very clean!
 
ser-specv

ser-specv

Member
Thanks guys! Yeah, the acropora was done. It was RTN and I had to get rid of it yesterday. The tank is about 6 month old. I just added some new base rock so they look fresh. Everything else you see in that tank is doing great and growing! It must of been the water parameter change from the local reefer's tank to mine that caused it to RTN. I did some reading on RTN and from what I read, acroporas are very sensitive to water parameter changes and can develop RTN very quickly. I'm just glad that everything else in the tank appears to be unaffected. I'm gonna do a 25% water change within the next couple of days.
 
9supratt4

9supratt4

Active Member
Originally Posted by ser-specv
http:///forum/post/3185456
Thanks guys! Yeah, the acropora was done. It was RTN and I had to get rid of it yesterday. The tank is about 6 month old. I just added some new base rock so they look fresh. Everything else you see in that tank is doing great and growing! It must of been the water parameter change from the local reefer's tank to mine that caused it to RTN. I did some reading on RTN and from what I read, acroporas are very sensitive to water parameter changes and can develop RTN very quickly. I'm just glad that everything else in the tank appears to be unaffected. I'm gonna do a 25% water change within the next couple of days.
From the research and experience I have done....RTN is nothing that will affect other corals in the tank. It does not affect your water, so there is no need to do a water change just because a coral RTN'd.
Don't forget...even though there are hardy species of Acropora....Acro's are still one of the hardest SPS to keep in our hobby!!
 
ser-specv

ser-specv

Member
Originally Posted by 9supratt4
http:///forum/post/3185462
From the research and experience I have done....RTN is nothing that will affect other corals in the tank. It does not affect your water, so there is no need to do a water change just because a coral RTN'd.
Don't forget...even though there are hardy species of Acropora....Acro's are still one of the hardest SPS to keep in our hobby!!
Thanks, that's good to hear. I did a 10% water change yesterday and was planning on doing a 25% when I get more water ready. Guess I don't need to do that anymore.
What's not so easy to hear is I killed a hardy coral... LoL! But I did learn quit a bit from this and I am now able to spot a RTN coral just like that! LoL! I pretty much saw it in real time with my own eyes but just didn't know what it was at the time!
 
kraylen

kraylen

Member
Originally Posted by ser-specv
http:///forum/post/3185486
Thanks, that's good to hear. I did a 10% water change yesterday and was planning on doing a 25% when I get more water ready. Guess I don't need to do that anymore.
What's not so easy to hear is I killed a hardy coral... LoL! But I did learn quit a bit from this and I am now able to spot a RTN coral just like that! LoL! I pretty much saw it in real time with my own eyes but just didn't know what it was at the time!

I think you read that wrong. Hard, not hardy.
 
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