Fish/Shrimp Fry?

NewReefer455

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Found some interesting fry in the tank late last night after lights out. I definitely do not think these are any type of pods by the eyes and schooling nature of them in the tank; they seemed to stay in, and move as, a group. They were very much attracted to light while in the dark tank as well. Current tank inhabitants include a yellow corris wrasse, pair of fairy wrasses, scooter blenny, firefish, pair of fireshrimp, 5 sexy shrimp, and a skunk cleaner. I doubt whatever it is will make it through a few days, if that, but I am intrigued as to what they could be. Here is a quick video I got of a few of them out of the tank. My best guess is sexy shrimp, based on the spotting nature they have, but they don't appear to move in a way that I would expect from shrimp.

 
Can’t open video
Any still pics under white lighting?
 
Here are 2 stills from the video, the vid was in a separate container under whites to help in ID.
1646319305223.png

1646319331629.png
 
The head shape makes me think baby fish, but the movement looks a bit more like baby invert to me and it does look like they are curling their tails under them.

I don't think they're a match for your current pairs - fire cleaner shrimp larvae look like tiny shrimp, sexy shrimp larvae look like little sticks (elongated shrimp shape that is particularly thin and slightly brown looking), and the wrasse pair are pelagic egg spawners, so the fertilized eggs would have had to circulate in your tank until they hatched, then develop far enough to swim like that, and a couple days worth of surviving in a reef tank full of hungry mouths and pumps.

It could be another hitchiker that spawned, there are some species that come out of the egg as fairly strong swimmers and while I don't think I've seen what you've got, a lot of inverts start as shrimp-shaped larvae, regardless of their eventual adult body plan, so could be shrimp, crab, or maybe something else.

In any case, this is up close of a sexy shrimp larva, and why I don't think it's a match:
sexy shrimp under microscope 1 hour.jpg
 
The head shape makes me think baby fish, but the movement looks a bit more like baby invert to me and it does look like they are curling their tails under them.

I don't think they're a match for your current pairs - fire cleaner shrimp larvae look like tiny shrimp, sexy shrimp larvae look like little sticks (elongated shrimp shape that is particularly thin and slightly brown looking), and the wrasse pair are pelagic egg spawners, so the fertilized eggs would have had to circulate in your tank until they hatched, then develop far enough to swim like that, and a couple days worth of surviving in a reef tank full of hungry mouths and pumps.

It could be another hitchiker that spawned, there are some species that come out of the egg as fairly strong swimmers and while I don't think I've seen what you've got, a lot of inverts start as shrimp-shaped larvae, regardless of their eventual adult body plan, so could be shrimp, crab, or maybe something else.

In any case, this is up close of a sexy shrimp larva, and why I don't think it's a match:
sexy shrimp under microscope 1 hour.jpg
looks like some kinda zoo plankton or other invert larvae.
 

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