fish keeping

Question
Hi, my name's Tanea, and I've asked you a question before and you were a lot
of help!
I'm not quite sure this is a problem, but I have recently added five glowlight
tetras to  my empty 10 gal aquarium. The nitrite reading is zero, nitrates are
almost zero, ph is around 7.0-7.2, and the temp is almost 78 fairenheit.
The problem is they are not really schooling. In fact, I have two males and
three females, and my larger female seems to be keeping her distance from
the others usually, while other times my largest male hides in the fake plants.
Also, I'm not sure if my female will have babies or not. She seems kind of
bigger than the others.
Thanks a lot!!!!
-Tanea

Answer
Hi Tanea,
I don't think you have to worry. Just continue to keep tabs on the water quality (make sure to check ammonia). Often "schooling" fish will space themselves apart occasionally and regroup when they feel threatened or the mood arises.

Female tetras seem to always be a bit plumper than males. Its quite a big trademark.

I hope all goes well!
Karen~