Help on this nudibranch!!!

[joelpeavy]

Any idea what type of nudibranch this is? Just found him a some cousins in my zoas and not sure if I need to remove them or leave them be. They all look alike, only this is the biggest one.

Thanks in advance!

 

[Naiad]

I would guess a zoa eating nudi. Removal would be best

 

[Sully]

Look at his color, they tend to take on the color of the Z's they're eating. I'd get them out ASAP.

 

[joelpeavy]

Thanks Naiad and Sully! Got about 3 of them out this morning and haven't seen any more.

 

[Squishie89]

I strongly suggest dipping your zoas if possible, these guys like to lay eggs and can hide extremely well.

 

[Pete polyp]

Dipping won't kill the eggs. flatworm exit works though

http://www.practicalcoralfarming.com/zoonudis.html

 

[seamus2050]

Dealing with the same thing in one of my tanks. Pull them out as you find them. Agree with Pete polyp treating with Flatworm exit. You can also get some wrasse that may eat them.

 

[Pete polyp]

Wrasse will be hit and miss. They also may only control a population instead of eradicate them completely.

 

[seamus2050]

Wrasse will be hit and miss. They also may only control a population instead of eradicate them completely.

Agreed, no fish is a sure thing or a complete solution. I dip colonies, pull them as I see them, treat with Flatworm exit and have a wrasse on patrol. I'm all in when it comes to trying to control these pests.

 

[Pete polyp]

That's definitely an aggressive way to go about it lol. I found fwe dosed at 1 drop per gallon every 5 days for 15 days (3 treatments) completely erased them

 

[joekool]

Have you actually seen it eat your zoa's? Or bite marks

 

[Small triggers]

I had the same last year...went through 4 bouts of FWE on the tank, including dipping them 3 times in coral rx...
I did 1 drop per gallon every 4 days...should have probably done it more quickly...like every 3 days ...