Help to identify

[Reefplove]

Hello guys i need to identify this guys photos made under microscope by 4x. they were on African Grunt fish, after his death,
Who are this guys?

 

[ISpeakForTheSeas]

Hello guys i need to identify this guys photos made under microscope by 4x. they were on African Grunt fish, after his death,
Who are this guys?

Welcome to Reef2Reef!

I'm not sure what the first one is (maybe @taricha or @Dan_P would have an idea there), but the bottom one is a bristleworm of some variety, and it's most likely harmless. It may have just been scavenging the dead fish; I strongly doubt it caused it any issues.

 

[Dan_P]

Welcome to Reef2Reef!

I'm not sure what the first one is (maybe @taricha or @Dan_P would have an idea there), but the bottom one is a bristleworm of some variety, and it's most likely harmless. It may have just been scavenging the dead fish; I strongly doubt it caused it any issues.

Looks like a crustacean larva (nauplii).