"a fine balance" is a correct and usable phrase in written English. You can use it to describe when two very different forces or ideas have been carefully balanced against each other. For example: "Maintaining a fine balance between providing sufficient resources and not overextending financially is a challenge for any business."
It's a fine balance".
But it is a fine balance.
"It is a fine balance.
But it's a fine balance".
"It is a fine balance," Marginson said.
It is, Dee says, a fine balance.
But there is a fine balance.
And that is a fine balance".
Maintaining a fine balance between the two is very important.
She'd finished "A Fine Balance," she said.
The last significant thing I read was A Fine Balance by Rohinton Mistry.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.
Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com