What is this?

[ggm]

Can anyone tell me what this is? Swims very fast, my guess is brine shrimp but I'm not too sure.



Cheers

 

[Tahoe61]

Have you introduced brine to the tank in form of dry foods? Looks like a good ID if the unknown is swimming.

 

[KJ]

Look like brine shrimp.

 

[scuzy]

A nudibranch maybe a berghias?

 

[Maritimer]

Looks more like a nudibranch to me as well, though not a species I'm familiar with.

Most nudis feed on some sort of cnidarian - either an anemone or a coral - and transfer the stings to their own skin. If it's a nudi, there's a good chance it's eating something you like.

~Bruce

 

[Tahoe61]

Nudibranch do not swim very fast, so if this swimming through the water column it's probably an arthropod type critter.

 

[Maritimer]

Good point.

I wouldn't call brine fast though, either ... some sort of epitoke? Do any of them have antennae?

~Bruce

 

[ggm]

They do have antennas, I'm not sure it is a brine shrimp either just because of the way they swim. Uploaded a video:

 

[Tahoe61]

Yeah looks to furry to be a Brine, hmmmm. Epitoke would be my next guess (as already suggested by Bruce) and they swim very fast.

 

[ggm]

Thanks guys had never heard of epitokes before