[fishshl]

I bought a female red tag tail platy two days ago.
And this evening, I bought one male red tag tail platy and two female sunset corel dwarf platies.
But my first female red tag tail platy always chase the three new platies.

Is this normal ? Will they be peaceful after several days?

I also found one small female sunset platy chased my panda cory. And all platies compete with my panda cory for their shrimp pellets. My panda cory looks quite stress.