Female mollies fighting for dominance

[ocminpin]

My dominant Molly female is fighting next in line female Molly in my 29 gal. They are pecking and she's back fin slapping her, they're going in circles and not stopping... I moved one into my 20 gal tank because I didn't want to be inquire about injuries next...
They were going at it pretty good and not stopping so that's when I scooped her out...
Any suggestions?

 

[ocminpin]

View attachment 61411

Cruella is moved to 20g L with 8 & 9 wk old fry... She's not bothering them at all... Not sure what to do.

 

[ocminpin]

I moved her back in the main tank last night after several hours and all seems okay for now..
Sure made for interesting video tho! Yikes