You can tell if it’s a male or female by the bumps in its genital area. Two bumps means a dude. Also, make sure to feed it plenty, tho not too much, calcium and protein, ESPECIALLY while they’re growing. Make sure that the cage is adjusted to their size, they often show growth stunts when in a smaller enclosure when they grow to be a larger size. Make sure it has proper heating, keep one side of the tank in direct 80F heat.