Any idea what this might be?

[Kelly]

I was doing a water change this morning and I noticed this object floating on the surface, no idea what it is but it does look like a possible egg sac. I have Bolivian Rams, Cory's, very small gouramis and 3 month old pleco's. I know it can't be Bolivian Ram or Cory eggs, or is it eggs at all? It's exactly the same size in real life as is in the photo's.

[nemo14]

Are all fish accounted for in aquarium it might be a chunk of of a dead fish that the other fish started to eat. 

[Kelly]

No missing fish.

[nemo14]

do you have live plants might be a chunk of plant matter ! What kind of food are you feeding ?if pellets food maybe could be a chunk of food, It is a strange looking thing floating in aquarium like that.