Hello all, seeking advice.

[aminik]

I have noticed holes developing in this Acan coral over the past 48 hours. The coral survived a red slime bacterial infection treated successfully two months ago. Was actually showing signs of growth since then until I noticed these holes developing. I was instructed by the shop that services my tank to dip it in a solution consisting of a mixture of Reef dip, coral Rx and flatworm exit. During this process I noticed that the defects go all the way through the skeleton of the creature to the other side? I did not notice any parasites escape. I am wondering if anyone has seen this and what the cause might be. I tried to attach some pictures. The tank is 220 gal, most coral doing very well as are 5 tangs, 2 clowns, 10 chromis, single banded shrimp. Last check 2 days ago paramaters showed high Magnesium 1600, Ca 460, Alk 10.4. Thanks in advance.

 

[mike werner]

Welcome

 

[george51349]

Welcome to Reef2Reef! I haven't seen anything like that, but I am sure someone on here has.

 

[fuelman]

Welcome to R2R!!!

 

[Gernader]

Welcome to R2R!!

 

[Dr. Phil]

Welcome to R2R! Im sure someone on the board will be able to help with this! #reefsquad

 

[aminik]

thanks to all for welcoming a newbie

 

[Crabs McJones]

Welcome to R2R! Looks like tissue recession. Are there any other corals near it?

 

[Peace River]

Welcome to R2R!!!

 

[aminik]

not very close. i took another picture to show where it lies in the tank. the anemone to the left just split off but nothing has been touching it as far as i know.

 

[Brandon Smith]

 

[aminik]

Update... After re inspecting the coral to take more photos, i noticed something moving in one of the new holes, it appeared to have a shell like a long clam of some sort. Not knowing what to do i stabbed it with a needle and removed most of it piece meal with forceps. I then poured a few drops of the iodine solution and Coral Rx from the under side where the holes were originating hoping to kill whatever was left. Is this a known parasite or did I unknowingly remove a part of the actual coral?! Pictures attached.

 

[Niteowl]

Welcome to R2R. Lots of knowledge here.

 

[windemerejack]

Hi and welcome from the UK. Very friendly and knowledgeable folk on here, you will love it.
Stay safe.

 

[fishguy242]

hi welcome to the reef going to love it here!
lots of fun/info/fun/help/fun!!!
pics!!...we all love pics!!!!

 

[SPR1968]

Welcome to R2R!!!

 

[Mikedawg]

I have noticed holes developing in this Acan coral over the past 48 hours. The coral survived a red slime bacterial infection treated successfully two months ago. Was actually showing signs of growth since then until I noticed these holes developing. I was instructed by the shop that services my tank to dip it in a solution consisting of a mixture of Reef dip, coral Rx and flatworm exit. During this process I noticed that the defects go all the way through the skeleton of the creature to the other side? I did not notice any parasites escape. I am wondering if anyone has seen this and what the cause might be. I tried to attach some pictures. The tank is 220 gal, most coral doing very well as are 5 tangs, 2 clowns, 10 chromis, single banded shrimp. Last check 2 days ago paramaters showed high Magnesium 1600, Ca 460, Alk 10.4. Thanks in advance.

Looks like a lobophyllia (open brain) not an acan. Gall crabs tunnel into lps corals, but your pic looks more like a worm. Might research larval stage of this animal, but probably something else. Good luck

 

[Reesj]

 

[KJ]

Welcome to R2R!!!

 

[Reefnman2]

Welcome to R2R!