Help with an id please

[mark765]

Hi,

I’ve a new hitchhiker in my tank, can anyone id it?

It was on the glass when the lights were off, but quickly moved across the sand to hide in the rock when lights went on.

 

[steveschuerger]

Looks like a nudibranch but I couldn’t tell you what species

 

[rayadog]

It looks similar to any number of leopard flatworms. One similar example: Pseudobiceros pardalis

 

[rayadog]

But I agree it is also similar to spotted nudibranchs. I think a worm more likely to dart from light? Idk. Could throw a chunk of clam in to see if it is a carnivore