Yellow Nudibranch?

[cboutiette]

Hello Everyone,

I got another shipment the other day and was looking them over and think I spotted a few bad critters. Anyone able to help me ID them?

It is the little yellow blob slug looking thing. The single one was on the bottom of a frogspawn plug.

The other is on the zoa flesh.

 

[Crabs McJones]

Elysia Sp for the slug, harmless
the ones on the zoas look like chitons - also harmless

 

[cboutiette]

Very much appreciated, that makes me feel better haha :)