what is causing this kind of destruction?

  • Thread starter Thread starter surfn
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Surfn, are these symptoms occuring in an isolated fashion or affecting several different colonies at once? Every once in awhile, I witnessed my colonies going through similiar things, almost acting as if it was triggered by an unknown "cycle." Like you've stated, nothing I did helped and whatever I did seemed to stress them out more.
 
Surfn, are these symptoms occuring in an isolated fashion or affecting several different colonies at once? Every once in awhile, I witnessed my colonies going through similiar things, almost acting as if it was triggered by an unknown "cycle." Like you've stated, nothing I did helped and whatever I did seemed to stress them out more.

these are completely isolated events. no other zoas are experiencing these symtoms at the moment. but thats not to say another colony may get inflicted next week, or the week after....

in the past, say this particular colony has been munched on before, everything was hunky dory for several weeks, then my blue zoas near this colony got munched on but the previous ones that got munched on did not get munched on this time.
 
Have you tried magnesium dip? I've had good luck with getting rid of pests on wild collected colonies. Almost everything and anything falls off in a magnesium dip.

Also, what about a possibility of fungus infection? Here's an interesting thread using Sporanox to treat fungus. I haven't had a chance to try it out but maybe you can acquire it more easily through your profession.

http://www.nano-reef.com/forums/index.php?showtopic=127258&hl=
 
Have you tried magnesium dip? I've had good luck with getting rid of pests on wild collected colonies. Almost everything and anything falls off in a magnesium dip.

Also, what about a possibility of fungus infection? Here's an interesting thread using Sporanox to treat fungus. I haven't had a chance to try it out but maybe you can acquire it more easily through your profession.

http://www.nano-reef.com/forums/index.php?showtopic=127258&hl=

i dont see any signs of fungus or zoapox.

i have never heard of a magnesium dip, but have done lugols FW dip before and no pests came off the colony.

the colony eventually healed up and came back around, but they usually recover if i leave them alone.

where have you heard of this magnesium dip?
 
It was recommended to me by eric(ETR). IME, it's the most simple and effective dip method when preventing pests from entering the system. Using epsom salt, just raise the salinity of RO to 1.020 ~ 1.026 and leave the frag/colony in it for about 15 ~ 20 minutes.

The reason why I mentioned a fungus infection was some of the polyps seemed like they were affected by it. I circled the ones that suggested an infection to me;; browning out of the polyp body, and shriveling of the flesh. Maybe it's just the way they looked when the pics were taken if fungus is not the case.
closeupclossedup2.jpg
 
That's definitely not chemical and looks like a irritation or predation due to the obvious path of irritation.......Not sure what it could be though as nothing in your tank is predatory on zoas. Don't be fooled by Tangs though, but if it was a tang the polyp itself would be gone.......It almost looks like something crawled over them....So you have any nocturnal starfish that you haven't noticed or have and assumed they were harmless.....Astrinas?
 
If you look in between the polyps the connective tissue looks like it has been eaten.....Most colonies like that I have seen may have gaps in between polyps but they are all connected by tissue and it looks like there are quite a bit of tissue removed in the section of irritation......
 
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If you look in between the polyps the connective tissue looks like it has been eaten.....Most colonies like that I have seen my have gaps in between polyps but they are all connected by tissue and it looks like there are quite a bit of tissue removed in the section of irritation......

Good oberservation Azurel... I didn't even notice that first time around.
 
Have you tried to place it into a QT to let it heal away from the main tank.. I've done that to various zoas/palys with sucess.. just place them back after a couple weeks of healing... they can also be treated in the QT too.
 
I had a similar problem and one night got lucky and saw what it was. A Eunicid(sp) worm came out of the rock and took a nice chomp on one of my zoas. I later saw him taking a bite out of my ricordea also. I will try and find a pic of the one i had.
 
It was recommended to me by eric(ETR). IME, it's the most simple and effective dip method when preventing pests from entering the system. Using epsom salt, just raise the salinity of RO to 1.020 ~ 1.026 and leave the frag/colony in it for about 15 ~ 20 minutes.

Would this method kill nudibranch eggs as well?

-Sonja
 

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