Dinosaur Bichir - What is this?

Rocksor

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Nov 28, 2011
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My guess is it's a pebble or something he swallowed all mucked up with poop, mucus etc.
Agreed, that is poo around something.

OP, change out the substrate to something smaller like #22 mesh size sand to prevent it from accidentally swalling gravel.
 

TwoHedWlf

Potamotrygon
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Mar 2, 2017
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Its eating. Swimming normal. Lays by the thing that was expelled. The thing has opened and looks to be a shell of some sort. I’ll take a pic tonight.
If 40 years of movies have taught me anything, this is either just a funny looking poop, or a horde of alien parasites are about to hatch and infest and kill us all.

I for one welcome our new brain parasite overlords.
 

fishhead0103666

Alligator Gar
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May 14, 2018
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I am suprised whatever it is was able to pass through his intestines and then be able to be passed it self.
 
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