27 liters is ~28.5 quarts. that's definitely appropriate for a hatchling/juvenile. i've got a 32qt set up i'm using for my next hatchling/juvenile. just make sure the tub isn't tall and has more length than height.
gender does not affect temperament. they're all individuals.
the only dumb question is the one you don't ask!
EDIT: WELCOME TO THE FORUM!!!
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