Bug ID

[PhutureNoise]

Does this look like an cope/amphipod or is this something else?

 

[PhutureNoise]

 

[EeyoreIsMySpiritAnimal]

Looks like an isopod... Might be a bad kind but would need to see a pic from the top.

 

[xunhe]

He should be a Dynoides dentisinus, right?

https://invasions.si.edu/nemesis/calnemo/species_summary/92407

 

[EeyoreIsMySpiritAnimal]

He should be a Dynoides dentisinus, right?

https://invasions.si.edu/nemesis/calnemo/species_summary/92407

Doubtful, that looks like a colder water species

 

[EeyoreIsMySpiritAnimal]

Doubtful, that looks like a colder water species

From the article you posted… “Dynoides dentisinus is a marine isopod, which is native to the Northwest Pacific from Russia to the East China Sea.”. Not exactly tropical…

 

[PhutureNoise]

Looks like an isopod... Might be a bad kind but would need to see a pic from the top.

Video is below! hope that helps.

 

[PhutureNoise]

 

[PhutureNoise]

 

[PhutureNoise]

Nothing in the tanks seems to be affected by them. Have kept an extra close eye on everything.

 

[EeyoreIsMySpiritAnimal]

@ISpeakForTheSeas

 

[ISpeakForTheSeas]

@ISpeakForTheSeas

That's most likely a Sphaeromatid of some kind (though close up, clear pics of the mouthparts and tail would help confirm that; if it curls into a ball [conglobates] that would confirm it too) - should be harmless/beneficial.