Need help with pest ID and treatment

[animan]

Hi,

Need some help with ID'ing the pest in the pictures and possible treatment. I am guessing AEFW but not sure.

I have dipped in CoralRx for 10mins, removed the pests and put the coral back in the tank. Hope this is the right course of action, if not, please let me know. One other coral in the tank has RTN'd, I do not see it any other corals yet.

I dip all corals in CoralRx before adding them to tank, so I am really surprised to see this.

Do I need to treat all corals in the tank as a precaution? Are there any in-tank treatments available?

Thanks in advance!

 

[animan]

Anyone?

 

[Reel North]

Smart money says aefw. I can't open the thumbnails on my iPad, but from looks of it you have aefw.

Dipping the frags and then putting them back in the DT won't solve your problem. You need a QT or separate system, that will allow

A) your DT to be fallow and kill them as they hatch and starve. You must remove every single Acro, every piece of growth on the rocks etc. There can be zero acro port in the tank

B) dipping gets the adults only, but not the eggs. Scrape them off the frags into a separate container, and crazy glue over any you can't get off

C) you must dip 2x per week, for what seems like 5-6 weeks. This will kill any aefw that either just hatched, or weren't on the acros when you dipped them. They don't STAY on the acros all the time. They need to feed weekly, and can be anywhere in the tank at the time you dip

Add a wrasse to the QT as well. I've dipped mine for 2 weeks, and had zero aefw come off In the dip container. I will continue to dip until I get 3 in a row with no aefw.

They are a real pain, but eliminating them is do able. You need to be diligent.

As I've been dipping mine, I've had some frags rtn. This is a fact of life. You will lose corals, but you can save your reef

 

[MrSandman]

They look more like nudibranchs. Maybe try googling acropora eating nudibranchs and see if you come up with a match. Its a little hard to tell from the pics but these things definitely have height that flatworms do not.