Anyone know what this guy is?

[IOnceWasLegend]

Haven't been able to look it up yet, but saw this guy munching on ostreopsis dinos in my frag tank.

 

[Bruce Spiegelman]

Paramecium?

 

[JVU]

He’s got a belly full of them!

 

[IOnceWasLegend]

Paramecium?

Not sure if he's a paramecium, though I could be wrong. I've seen a lot of them in samples I've taken, and this one seemed like it had a 'mouth' that didn't really change much, instead of engulfing prey.

He’s got a belly full of them!

Hence why I'm trying to figure out what it is, haha. I'd like to culture them!