Wierd egg thing? What is this!!?

[Pezking182]

This is the second one ive seen in the past month. Is something spawning?

It has an orange center and it appears to have fast whitish movements swimming around it. I see it floating around the tank.

 

[Bob Loblaw]

Possibly a Spintheridae.

 

[Pezking182]

Heres a video of it moving.

 

[Bob Loblaw]

Spintheridae, they eat sponge.

 

[Muttley000]

Possibly a Spintheridae.

Had to look those up. Very interesting!