I think i have a pregnant tetra?

Question

i have 2 neon tetras along with some other fish one tetra is very fat and sits in the corner alot but swims up for food i was wondering if he\she is pregnant

Answer 1

Fish don't become pregnant. They lay eggs and the males fertilize them. I would think the one is simply larger than the others and some fish are "lazier" than others. It's probably fine.

Answer 2

It sounds like it.