Can someone tell me what this is.

[Hero27]

I have a cherry red shrimp tank and I have noticed that they have started to have babies (whoo hoo).
I have also noticed two of these moving about but have no clue what that are.
Can someone tell me.

Ps. I also have assassin shrimp in the tank to.

Thanks

 

[Colin_T]

need a picture that is in focus and maybe a video

 

[Hero27]

It's the best I could do before is slithered away. It's flat if that helps.

 

[connorlindeman69 10]

No idea. The picture is not in focus.

 

[Faunadael]

Could it be a planarian (hopefully not!) or a rhabdocoela? Both types of flatworm have a different shaped head. You may want to look online at photos of the two.