Can anybody identify. Sick IDK :(

[ZeroShadez]

My mandarin goby has developed the clear/opaque spots most visible on fins but on body too idk what it is hes eating good it seems and he moves around fine doesnt seem lethargic.

 

[Big G]

Has the fish been freshwater dipped to confirm or eliminate flukes as a possibility?

 

[ZeroShadez]

Has the fish been freshwater dipped to confirm or eliminate flukes as a possibility?

No and how would i go about doing that. I
Does that look like a possibility