Can anyone identify

mikeb2 · Nov 15, 2020

JGT · Nov 15, 2020

mikeb2 said:

Appears to be a berghia nudi, good guy.

mikeb2 · Nov 15, 2020

JGT said:
Appears to be a berghia nudi, good guy.

Many thanks, just looked it up and yes it is. I have a zoa colony full of them

JGT · Nov 15, 2020

mikeb2 said:
Many thanks, just looked it up and yes it is. I have a zoa colony full of them

If you have aiptasia, these guys will munch them.

driftin · Nov 15, 2020

mikeb2 said:
Many thanks, just looked it up and yes it is. I have a zoa colony full of them

I think there's equal chance these are zoa-eating nudibranches. How long have you had them and are you seeing any damage?

JGT · Nov 15, 2020

driftin said:
I think there's equal chance these are zoa-eating nudibranches. How long have you had them and are you seeing any damage?

Berghia won’t bother Zoa’s. They will eat aiptasia if you have them.

r20crazy · Nov 15, 2020

please read and confirm. since you say they are all over your zoas... i bet they are zoa nudis... the one you posted looks like one in video in link

Zoanthid-Eating Nudibranch – Critter Guide ™

critterguide.ca

moz71 · Nov 15, 2020

I agree you need to confirm because they look very similar BUT eat very different things. For example! I was mystified that I had a very healthy Kenya tree that slowly died over time until I found what looked EXACTLY like that in you pictures eating them. And that would be my guess. Do you have any soft corals besides the zoos?

mikeb2 · Nov 16, 2020

JGT said:
If you have aiptasia, these guys will munch them.

Update, these nudibranch are zoa eating nudibranch, I am now starting treatment for them

reef lover · Nov 16, 2020

Def zoa eating I can see the zooanthellan in their tentacles....good luck with treatment.

mikeb2 · Nov 16, 2020

reef lover said:
Def zoa eating I can see the zooanthellan in their tentacles....good luck with treatment.

For anyone else with this problem, treatment is simple , use ro water same temp as your tank, with a few drips of malachite green, place your zoa into the solution for 5 to 10 mins. The ro water kills any live nudibranch within a minute and the malachite green will kill any eggs present. Zoa is a tough coral and not suffer any harm, next step is to rinse in clean ro waterto remove the malachite green. Repeat after 2 weeks to remove any that are roaming around your tank that try to reinfest.

mikeb2 · Nov 16, 2020

moz71 said:
I agree you need to confirm because they look very similar BUT eat very different things. For example! I was mystified that I had a very healthy Kenya tree that slowly died over time until I found what looked EXACTLY like that in you pictures eating them. And that would be my guess. Do you have any soft corals besides the zoos?

Yes I have gsp's, mushrooms and a tree.

driftin · Nov 16, 2020

Glad you caught it quickly!

moz71 · Nov 16, 2020

Glad you got quickly identified and can resolve. Unfortunately I was new and lost a a whole tree. I discovered three HUGE ones lived under the rock the tree was on and came out each night to dine. Good luck

vetteguy53081 · Nov 16, 2020

Not sure if berghia but I gave you something below to try and match it up.
zoa eating which has the front body of a cricket but similar to berghia. Here is Zoa eating:

Berghia:

Aeolidiella stephanieae
ot = oral tentacles,
ft = foot tentacles
e = eye,
r = rhinophores,
cn =cnidosacs at the cerata tips.
c = cerata.
Picture by: Alen Kristof & Annette Klussmann-Kolb