I really want to know if my turtle is male or female. I know that you can't tell until they get older but I can't wait that long haha

. A few months ago I was turtle sitting for a friend and I let my turtle and hers stay in the same tank(they didn't fight). Once they got acquainted my turtle started to do the turtle ritual where they flutter their claws. I later looked this up and found out that males do this to the females. If this is true does it mean my turtle is male?