Diluting formula milk

yes, I add 10ml more cos last time my #1 baby don't like formula, so I dilute it so it doesn't taste so strong. for my #2, I also dilute by 10ml cos she had a bad constipation since starts solid, she cries everytime she poop, cos the stool is so hard, but she's better now cos her milk intake now is much more compare to last time. She starts formula since 6 months btw, I didn't gave her fm from beginning, for early stage better not dilute cos they don't drink much