Please help me ID this critter

[Lance Fjeseth]

This guy just started crawling up the glass. He is about 1/4 " long. Do I need to remove it?

 

[Crabs McJones]

Nudibranch, are you able to get pictures from the other side with more white light? Easier to identify which type that way

 

[GBRsouth]

It's a nudibranch. I am unsure which kind but most should be removed.

 

[stylaster]

Agreed and most of the small ones like that tend to prey on corals. I would remove it

 

[Gareth elliott]

Even if it doesnt eat corals most are very selective in what they eat, Berghia stephanieae eats only Aiptasia, dont have any it starves to death. Would also recommend removing.

 

[Lance Fjeseth]

Thanks - I took it out and got another pic in a cup

 

[Crabs McJones]

Zoa eating nudibranch most likley. Best to get rid of it

 

[Lance Fjeseth]

Zoa eating nudibranch most likley. Best to get rid of it

Thank you everyone for your quick responses. I will now be on the look out for others - bummer! I will try to take some better pics before I discard it and add them for everyone to have as a reference.

 

[Lance Fjeseth]

Thank you everyone for your quick responses. I will now be on the look out for others - bummer! I will try to take some better pics before I discard it and add them for everyone to have as a reference.

One more pic

 

[Gareth elliott]

Aeolidiopsis harrietae?