Living FISH in my mysis!!

An_Enemy · Jul 10, 2021

There was a living fish inside my mysis pack!

I want to take care of the little guy if possible, but I have no idea what living conditions he needs.
He's been in a fridge for who knows how long and somehow survived, so I guess it's cold water. Would it be ok in a reef tank?
I tasted the water ( gross, I know) and it seems a little salty, but less than my tank does.

Video: https://photos.app.goo.gl/2LonVL9nuXe8Gjm76

Any help IDing it would be appreciated, I can provide my photos/videos if needed.

SchrutesReefs · Jul 10, 2021

That is very odd.

fish farmer · Jul 10, 2021

Does it have a set of spines like three or more on it's back?

It looks like a stickleback based on the shape.

Stickleback - Wikipedia

en.wikipedia.org

An_Enemy · Jul 10, 2021

No spines, it doesn't seem to have any distinctive features, it's a small greenish-brown fish with a blotchy coloration.

More photos here: https://photos.app.goo.gl/zFaXQj4UD2hVrm1h6

CMMorgan · Jul 10, 2021

Where did you get the mysis? Have you contacted the seller?

Timfish · Jul 10, 2021

Maybe a mud or bull minnow?

An_Enemy · Jul 10, 2021

CMMorgan said:
Where did you get the mysis? Have you contacted the seller?

From an LFS called Maidenhead. Not sure where they source the shrimps from, the packet only says 'mysis'. I'll try calling the store.

CMMorgan · Jul 10, 2021

It almost looks like a sardine. My husband loves to eat sardines. (BLECH)

Tamberav · Jul 10, 2021

The live glass shrimp that comes to my LFS sometimes has live pipefish in it!

I would probably test the salinity of the bag and put him in an unheated tank/container that is matched. I don't normally drip fish but probably would with this guy as I can't fathom what the parameters of that bag are or even what type of salt it could be.

An_Enemy · Jul 10, 2021

Timfish said:
Maybe a mud or bull minnow?

Could be.

The specific species of mysis seems to be 'mysis relicta', which comes from cold brakish waters. I'm going to split water from my tank with RO and use some of the sand/rock from it too.

Hopefully the little dude survives.

Tamberav · Jul 10, 2021

An_Enemy said:
Could be.

The specific species of mysis seems to be 'mysis relicta', which comes from cold brakish waters. I'm going to split water from my tank with RO and use some of the sand/rock from it too.

Hopefully the little dude survives.

If you have biospira, it works for low salinity too. I had a fish show up in hypo and had to set up a tank quick and that stuff still worked.

An_Enemy · Jul 11, 2021

Update: The fish sadly didn't make it. I spent a long time acclimating and It seemed to be fine for a while but didn't pull through.
Not sure if it was the change in water or the overall stress.