Help with ID

[Luan B.]

Hello everyone,
Just after dipping the coral I saw this like guy floating around, looks like a nudibranch of some sort, hard to tell in the photos because is really small, anyone has any idea what is it? is greenish yellow with black marks… Thanks!

 

[Kingsley_Reef]

Need a clearer pic looks like a booger

 

[Luan B.]

Need a clearer pic looks like a booger

Really hard to focus on it

 

[Luan B.]

 

[Tahoe61]

It looks like what it eats, so what type of corals did you dip?

 

[Luan B.]

It looks like what it eats, so what type of corals did you dip?

Gonipora

 

[Tahoe61]

What color is the Goniopora?

 

[Luan B.]

What color is the Goniopora?

Neon green

 

[Tahoe61]

Looks more like an Eylsia type. Not a Goniopora eating nudibrach.

 

[ISpeakForTheSeas]

Looks more like an Eylsia type. Not a Goniopora eating nudibrach.

Yeah, hard to say from the pics (no judgement here, OP, it's a tiny critter), but I would guess Elysia flava or Elysia obtusa:

if it's from the Atlantic, it's E. flava; if it's from the Pacific, it's E. obtusa

Elysia flava or E. obtusa - harmless/beneficial Sacoglossan slugs. They're herbivores, with E. obtusa known to feed on Bryopsis, while E. Flava is thought to feed on Cladophora

 

[Luan B.]

Yeah, hard to say from the pics (no judgement here, OP, it's a tiny critter), but I would guess Elysia flava or Elysia obtusa:

Thank you! I had a look and looks like a Elysia Obtusa, I wonder if should I keep it or it’s a bad idea.

 

[ISpeakForTheSeas]

Thank you! I had a look and looks like a Elysia Obtusa, I wonder if should I keep it or it’s a bad idea.

It shouldn't hurt unless you're actively trying to keep some specific types of green algae.