HELP: Rapid Tissue Neucrosis!

[goby2004]

Yes, I do believe that is what is happening. If any of you remember a few weeks back I made a post that some of my corals were rapidly deteriorating, and no response. I just pushed it aside and hoped it wouldnt reacure.

Now, it has struck again and killed off two of my acroporas. Yes, completely. And it is starting on my encrusting monti.

What do I do? HELP! I am praying it wont get to my blastos and rics...

 

[Herefishyfishy]

Major water change and move the affected corals to a different part of the tank

 

[SueT]

blastomussa and rics are not going to develope RTN, this is an sps coral species specific disease. What has changed in the tank that you can think of?? Any water param swings?? There has got to be some reason for the corals to begin to slough tissue. Anything new introduced?? Try to make the system as stable as possible and try not to change anything. Changing will only cause more stress to the affected corals. Are you running carbon, if not I would add some to a bag and place in your sump. That for now should help unless your already running some.

 

[Damsel13]

New Carbon rinsed in RO/DI water? Someone on here, I think it was, well I don't remember said old carbon is NOT GOOD neither is carbon dust. Any thoughts about this SueT?

 

[SueT]

old carbon will begin to leach back into the water. Dust from the new carbon is not good either. It needs to be rinsed in ro water and as much of the dust gotten out as is possible.

 

[Ed Hahn]

old carbon will begin to leach back into the water. Dust from the new carbon is not good either. It needs to be rinsed in ro water and as much of the dust gotten out as is possible.

Sue,
Would this also change Live Rock to black?
Ed

 

[goby2004]

A little more than a month ago we added some major current, and a week or so later got the vilangmi tang. We didnt have any parameter changes that i noticed.

I also had some trumpet coral that seemed slightly effected, not completely dying off but shrunk up and a few heads did die off. Was this something else or...?

 

[SueT]

I would think that if the powder off the carbon got on rock it might stick and could turn the rock black. It seems like to me that it would blow off the rock though.

goby, none of the added flow is aimed at any of the corals, is it??

 

[goby2004]

not permanetly, it swivels 200 degrees around the tank, slowly. One of the acros that died was put in after the current was added, but came from a very high current home.

 

[Sherman]

Just another opinion:

Big water changes and lots of carbon, first. Also, there's a difference between lots of flow, and lots of velocity in the flow. 300gph coming out of a Maxijet powerhead (1/2" diameter) is quite the little jet stream. Perfect for water etching the flesh right off of corals. But take that same 300gph and put it in something with a wider pattern (Seio, Tunze, Hydor powerheads) and it feels soft. But it's the same amount of flow.

Your rotating device, how much flow is coming out of it, and how big is the plumbing? Instead of a large wash of water across your tank, you could also be shooting a fire hose stream, depending on the setup.

 

[goby2004]

I didnt know the answer, so this is what the dads said:

the pump is 2500 gph, and it is distributed into 3 areas, and on a mid setting. he is guessing about 700gph in a 200 gallon display through a 1" wavysea.

the original coral died off a week or so after adding current, and now the acros, 4 weeks later??

 

[SueT]

so I'm wondering if it could be water params. Calcium alk, magnesium out of balance. Phospahte, nitrate raising... there is a reason for a previously healthy acropora to up and bleach. It's just trying to figure it out. Were these wild acropora??

 

[goby2004]

We purchased the main one from the lfs. it opened up and really just loved the current, huge polyps, great color. all acros were doing just fine. now everyone of them are fading in color and have algae growing on them already. this really just sucks. i will go and do a parameters test right now and will post tomorrow.

and another change was when the pump was added, we added another 120 gallon sump, so the system is 420 gal plus.


ugh i hate this

 

[Sherman]

Was anything put in the sump? New live rock? Or just another body of water? Is the sump new? Was it cleaned, and if so, how was it cleaned?

 

[SueT]

were these wild acropora?? Wild are terribly hard to acclimate and make it. If they were captive grown that would be a different thing. There also may of been something accidentally that got into the new sump. There should be a reason this is happening, it's just figuring out what..

 

[goby2004]

ill have to ask dad how he cleaned it. he used the same way he did with the main tank when we took it down and resetup in november.

no new rock was added. just the mass of water.

the acro looked amazing 2 weeks ago. last week just died off.

the acros i have had in the tank for over a year and went through the tear down and re setup are also dying now. i dont get it.

also my frogspawn is dying off.

will do the test tonight. just got home from school, hw to do first. Joy.

 

[SueT]

something is going on thats a definite. Now if other corals are showing signs of dying off, not just acropora, then I think it's safe to say something is in the water. If those long kept acropora made it through an upgrade and didn't have problems but are now having problems then something at that point had to happen to cause all this to start happening.

 

[Herefishyfishy]

I wish he would have done that water change when so suggested...

 

[SueT]

yeah, I agree, a water change of large volumn is definitely called for. You might also consider adding a polyfilter. That will draw out any metals that may of gotten in it. Carbon wouldn't hurt either.

 

[Jan]

what about stray electrical voltage...is that a possibility?