Tissue recession

[ssmtcarlo]

My Blue Aculeus is showing some tissue recession on one of its tips about less than a 1/4 if an inch is recessed. Is this STN, and should i frag off the piece where its recieding.

water
SG 1.025
Ca 380
alk 8dkh
nitrates 0
phosphates 0

 

[SethKim]

Last night, I dragged my lazy ass to do some fragging fo an acro colony that seemed to have RTN...So I pulled out the colony and was giving a lugol bath, I see bunch flatworms dropping!!!! ahhhhh AEFW! Don't know where it came from, but I had it, funny part about it is that the same acro, I gave it a bath a week ago when I saw the first symptom, no flat worms came off then, I guess the dip wasn't as strong as the one I made last night!
I'll recommend you give it a good medium/strong conc. dip!!! to figure out the cause!

Sincerely,

 

[ssmtcarlo]

it almost looks like the tip was scraped with an abrasive of some kind. could a clown goby have caused this

 

[ssmtcarlo]

any other ideas
ill try to get a pic

 

[meschaefer]

Do you have any urchins?

 

[House of Laughter]

Could be a host of things - could be normal growth showing white, a fish could have scraped up against it, Urchin, stn etc - without real good pics, it's tough to tell.

AEFW's typically eat from the bottom up, so, one of the symptoms is recession from the base towards the top.

Can you get us a picture to take a closer look?

House

 

[ssmtcarlo]

no urchin, Maby a emrald crab?
going to try to get a pic tonight