She(?) was born in my betta/shrimp tank (guys 😳), presumably off a new plant, and moved to a safer tank, but today I learned guppies are not the only thing to look like this, and she was always quite... large

I always thought she was just fat because I'm good to her

Now I'm curious, and worried, because I just assumed guppy and therefore fine in a community tank, but I've just learned, TODAY, about mosquito fish and how they prefer to be alone

AND THIS HERE

Is not helping me