Suddenly aggressive platy

I have a female platy that has decided she is going to bully all of her tank mates. She does appear to be pregnant with a few fry but not many. Her litters are usually quite small. It doesn't appear as if she is doing any real damage to the other fish, which could just be because shes a platy with a small mouth. She is the smallest one in the tank and while that tank is normally super peaceful and easy going she is annoying everyone. She will literally swim around the tank and chase and nip everyone no matter where they are in the tank. All I can think is she is close to birthing? She has never behaved like this before though. I have put her in an isolation tank hoping that is all it is and she will feel secure. Any thoughts?

 

Not sure i have seen any of our female platies act like that at all unless constantly harassed by a male or two. Has any of that. Een going on lately?

 

Not sure i have seen any of our female platies act like that at all unless constantly harassed by a male or two. Has any of that. Een going on lately?

No. I only have 1 male platy and 5 female. And he rarely attempts to mate. I have 2 dwarf gourami but they dont seem to care either. Everyone usually gets along just fine. Its strange.

 

I have a female platy that has decided she is going to bully all of her tank mates. She does appear to be pregnant with a few fry but not many. Her litters are usually quite small. It doesn't appear as if she is doing any real damage to the other fish, which could just be because shes a platy with a small mouth. She is the smallest one in the tank and while that tank is normally super peaceful and easy going she is annoying everyone. She will literally swim around the tank and chase and nip everyone no matter where they are in the tank. All I can think is she is close to birthing? She has never behaved like this before though. I have put her in an isolation tank hoping that is all it is and she will feel secure. Any thoughts?

Is it possible that she is bullied by the other fish? What is the stocking of the tank she was in and the size?

 

Is it possible that she is bullied by the other fish? What is the stocking of the tank she was in and the size?

No shes not being bullied. 15 gall. 6 platy 2 dwarf gourami. Lots of plants and hiding holes