Possible Pathogen Based Acro Necrosis

Look, I think that the animosity is that you seemed to insinuate that one still doesnt dip even knowing whats out there. But weve gone over Kips tank tooth and nail. He mentioned that he dips all his new stuff. So one might think you were saying Kip didnt and this is what happens. Thats the way I took it anyway. Guys, lets stop the nit pickin and get to real answer. I too have a sort of stable tank here. No new necrosis. But I will clean my ro/di when i change out the media. Most likely this weekend. I cleaned out the bottom of my tank and removed the dead crab shells that were there. On a good note. I have a new baby clam I found. Nothing beautiful but its there. And a funny pic. Maybe youll get a chuckle out of. I did.
Anyone see anything wrong with this picture?
Picture0240001.jpg


Blue leg crab complete with its own algae.
 
CaReefer... nope, no fish losses

saltman... are you asking me if this problem is only affecting acros? if so, the answer is a definitive yes
 
Personally, the Virus and the bacteria on the RO/DI is unlikely the cause. Severals months ago, I had the bacteria infection on my RO and you can smell the bad odor coming from the RO. All my corals are fine at that time. See my thread on this.

I go back and fro with Spectrapure on this and the information I got is that bacteria don't normally grow in the DI area. Most likely it will be the RO unit. The DI being lack of depleted of nutrient is the worst environment for the bacteria to grow.
 
"In addition, it's good to check all water quality parameters and look for signs of stress. If a biological trigger is present, dilution will potentially lessen the concentration and/or stop the reaction. Much the same as a human suffering from chronic allergies feels relief as they move indoors away from the pollen, the reaction seems to subside in corals with "RTN" when isolated or subjected to dilution."

This is a quote from this article. This is what I was talking about earlier.
 
<a href=showthread.php?s=&postid=10041927#post10041927 target=_blank>Originally posted</a> by gasman059
Hey Kip aqny news on the doxy?
Please let me know as I'm curious about the original observation.

at this point i have gotten rid of all tissue areas showing recession by cutting them away. i am waiting on new areas to show up and if they do, then i will go forth with doxy experiments

doesnt do much for "research"... but in my best case scenario, i wont have to use the doxy at all. At the same time, it is good to know it is right here ready and waiting if i do need to use it.



saltman....
i see what you are saying thru the borneman exerpt... but what good does changing the air do for say a cancer patient. the problem isnt airborne, but in the cells themselves. don't know if i expressed that clearly, but hopefully you'll see what i am trying to say.
 
another good point in the article


"Lest anyone lose hope if they have an outbreak of "RTN," it is very possible for a healthy system to have an outbreak and have it resolve naturally.

I have two colonies that have survived such an event outside of experimental work, and I track their progress. In fact, after a recent addition of new corals following a move, a previous "RTN" survivor experienced "RTN" again, but only on the branch with new growth.

The old growth and recovered tissue loss regions remained unaffected - is this immune memory?
Corals have been shown to have short term immunological memory, and so this is a possibility.

The coral has since responded to dilution and absorption protocol, and is regaining lost tissue daily. "
 
i am not sure, but all signs are pointing that way. if i had the answers this would be a "how-to" thread instead of a "help" thread.

what i dont get... if it were something free-floating in the water column, then why arent all acros affected at once? (be it pathogen or parameter problem)

i have probably done around 1000g in water changes in the last month

this would all be much easier if i could see direct cause and effect. as horrible as aefw's are... at least in that case you see the effect of recessed/consumed areas and then look closer to find the cause... which is an aefw hanging out right at the recession line

i think the most significant thing i have done lately is to frag away unhealthy areas of acros instead of trying to heal those areas. I am talking if the tip looked bad.. the whole 4 inch branch got hacked away. if the whole base looked bad, the whole frag got thrown out. i am simply decreasing the biomass per tank volume of whatever this is in the tank so it doesnt spread as fast. i'd like to think i exported all of it, but only time will tell. if it is something free-floating... i'd still expect to see it rear its ugly head almost immediately (and as mentioned before, on a broader scale)

the hardest thing to do is change what people think.... maybe i need a hard lesson in changing what i am thinking. maybe that hard lesson is watching my acros waste away one by one

and for those keeping score... each day without new signs of this problem is a "record".... i am at day 5
 
Yum Cimil-Not what your saying. Mine is where instead of the smooth skin it usually has it turns sandpaper texture. Non shiny. And about a week later it peels off.
 
I'm sorry you are going through this Kip. You must be so exhausted.
Just like many here, I hope this is resolved soon and you are able to save some.
 
thanks sugartooth... one of the hardest lessons i have to re-learn over and over again in my life.... patience
 
Kip this is very puzzling for sure. Do you happen to have a sandbed? Could it be possible you have something going on there. I know they can store up alot of nutrients and those can be released if the sand is disturbed.

I once had a sandbed in my refug. And I attempted to siphon it out little by little. Once I forgot to turn it off from the main tank.
I apparently released alot of nasties into my main tank. And I went through about the same thing as you are decribing. I lost over $700 in sps. Water changes did not help. I just had to ride out the storm. It was not any fun and lasted for at least 3 to 4 weeks.
 
<a href=showthread.php?s=&postid=10043962#post10043962 target=_blank>Originally posted</a> by znut Reefer
Kip this is very puzzling for sure. Do you happen to have a sandbed? Could it be possible you have something going on there. I know they can store up alot of nutrients and those can be released if the sand is disturbed.

I once had a sandbed in my refug. And I attempted to siphon it out little by little. Once I forgot to turn it off from the main tank.
I apparently released alot of nasties into my main tank. And I went through about the same thing as you are decribing. I lost over $700 in sps. Water changes did not help. I just had to ride out the storm. It was not any fun and lasted for at least 3 to 4 weeks.

Im leaning to all the changes that have occurred as well....and they happened to a well established system that was in its groove and one right after another. Maybe the negative effects of all the changeovers are starting to rear their ugly heads now? Who knows, at this point all of it is anectdotal BS.
 
znut... yeah... somewhere along the 12 pages that this thread has grown into.... someone asked something similar....

my sand bed... always been shallow... roughly an inch in the front and maybe 2" in the back. the sand in the front always got shifted around due to water flow. this is why i pushed the front sand (front 3-4") further back in the tank and put the gen-x schuran style media in the front as substrate. Regardless... my issues developed before i ever did this... and it doesnt correlate to problems i've seen in a seperate holding tank here at work.

my guess in all of this still point fingers at a pathogen/bacterial problem of sorts.

i've gotten several PMs from people experiencing the same problem "all of a sudden" .... the common thread seems to be that we all actively aquire new corals/frags from vendors (not much of a common thread right? ... pretty much describes all stony addicts)

"anecdotal BS" ... a lot of the "foundations" that today's stony keepers stand on is based upon anecdotal info/experiences of those who came before us.
 
Actually I rarely add new SPS. I get mine mostly at local frag swaps, which happend 2x a year. So it had been 6 months since I added a new SPS and my problems started within 2 weeks. Still, it might be coincidence.
 
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