Do not clip their nails. Males have longer nails than females. Their nails NEVER need clipping even if you keep it in an all-glass environment with no object to rub their nails upon. They are not like dogs or humans or birds whose nails grow long when not exposed to adequate substrate friction. Turtles need their sharp nails to break apart large food. If you hurt their paws it could hinder their ability to eat. That is, it may stop eating if it associates food with painful paws. I used to breed red eared sliders in my commercial fish farm 20 years ago. Had a dozen or so 14-inch red eared sliders that laid eggs on a regular basis. I miss having them but I sure don't miss the mess that they made!
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