Fish chasing each other

[momo3681]

Y black Molly, guppy, and male Mickey mouse platy are all chasing my pregnant mickey mouse platy? Why are they doing that?

 

[aqua_chem]

Could she be getting ready to give birth?

 

[Big.Jon]

It may be very possible that she is pregnant. IME when one of my mollies or platties are getting ready to drop all the others will constantly abuse her and chase her around.

 

[bruinsbro1997]

Could be aggression. When I had a female molly she was always chased by my boesmani rainbow for some reason, not sure why.