What is this on my glass?

[Mremmert23]

Can someone tell me what this is on my glass? Is it good or bad?

 

[Soren]

Maybe a Berghia Nudibranch? It looks too large to be some type of pod (such as copepods).
Can you get a closer picture for more detail?

 

[Mremmert23]

Here is another photo of it. Sorry I cant get much closer as my camera doesnt like to focus that close

 

[Softhammer]

Spitting image of a Berghia nudibranch

 

[Mremmert23]

Thanks! I had just noticed them in there today and was a bit concerned since they looked like a decent size haha.