I try and soak it 3x a week in my bathtub (knee arm length for a tortoise) for 30 mins. We feed him garden weeds every 2nd day and we live in scotland and we’re told we would not need a humidifier. We are going to buy a tortoise table as soon as possible.
I would say a bit more hydration would be good....you can also offer high water content foods as well as your regular diet...high water content foods will help to hydrate from within in addition to your soaks Cute little tort by the way.