Just curious why you would want to remove a ready to spawn female, just because she is large?
Are the eggs in the flower pot?
If so, I see at least 2 other females in the tank, maybe more.
And is that a Tilapia off to the right?
If the eggs are fertile (?) I'd remove every fish except the guarding female and her eggs.
That "is", if there is actually a male in the tank. Sometimes two females will deposit eggs
I cropped you photo a little to try and see gender better, but not much help.
View attachment 1243993
The two uppermost festae look to be females, not sure about the one to the right of the pipe