Please ID

[Din Gior]

I found this little guy inside the rock. He is about 5mm length. Does anybody know what is it?

[christyf5]

Looks like some sort of isopod/copepod.

Frankly I'd be getting rid of him but thats up to you

[gregzz4]

I'd say it's an Amphipod due to the dissimilar legs, and yah, that's too big for a reef tank IMHO

[ckmullin]

curious, what is the scale?

You'd have a better live view. Any similar characteristics?






See if you get him to go after some Doritos!

[saltyair]

good thing you got him out. that would attach to a fish - it's a "Cymothoa exigua" or tongue parasite

[Din Gior]

Originally Posted by saltyair

good thing you got him out. that would attach to a fish - it's a "Cymothoa exigua" or tongue parasite

No, it's definitely not a "Cymothoa exigua". It some kind of isopod/amphipod species.

[mameroo2000]

Cymothoa exigua it's type of isopod's
But this guy don't look parasite as what I'm seeing on Wikipedia

[Bryan]

Run...don't walk. It's a baby...

[Aquattro]

Isopods that attack fish do it very quickly, like within minutes of a fish being present. If this thing was living in the rock, it's likely fine leaving it there. Just keep it away from the Doritos!