Ok, so I bought some teeny tiny comets from a 'feeder' tank about five months ago. Three of 'em survived and as of now they're healthy. Only thing is, one of the (I think) males is chasing a bigger fish (I think female) around like crazy. His 'nose' is pressed right against her anal fin the entire time. They'll do this for a few minutes, she'll get a burst of speeed and outswim him for a second or two, then he loses interest. Within minutes they're at it again.
Aren't these fish too young to be breeding??

I hope I don't need a tank divider.

...Maybe they've just been getting a bad example because they're in me and my husband's bedroom?