A pregnant fish?

My cousins and I were looking at my two Zebra Danios the other time and ones tummy seems alot larger. Is it pregnant or portly? All my other fish are normal!
Answers: It is not a live bearer so it may hold eggs. Fish may keep babies within their mouths buut it is not the place they birth from (ask yer mum or dad about the birds and the bees).
Lastly a tw&t is not a pregnant fish. It is a derogatory permanent status for a woman's "lady bits".
Your fish may be overweight.
i'm no expert, but i would think its purely fat. fish hold their babies in their mouth.

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