My terrapin is vibrating claws. How do I know its gender?

Juveniles smaller than about 4 inches are difficult to sex. Once they reach that size or larger, it is quite simple.Female sliders are larger, have shorter front claws and thinner. smaller tails than males. Males can be territorial and could "argue" if the tank is not of sufficient size. Ideally, you want to allow about 10 gallons per inch of turtle. Sliders can get big (12 inches fully grown), so be sure you have the space and budget for a large tank.

Separate out the aggressive one. It could be nipping due to hunger, stress or aggression. Consider hand feeding to avoid accidental bites as well as dividing them into two tanks to provide more space. As they mature, they will require a significantly larger space. This number of turtles ideally will need a tank in the hundreds of gallons range or a small pond. A general guideline is 10 gallons per inch of turtle. Sexing turtles is easier when they are mature. Without knowing the species, it can be difficult, but in general, females are larger than males. Males have a shorter, thicker tail in comparison and usually have longer front claws. A female will have a flat plastron whereas the male will have a slight concavity. Males have a v-notch at the rear of the carapace to accommodate the tail when mating. Lastly, you can check the cloaca, or vent. Females will have a rounder vent closer to the body whilst males will have more of a slit farther down under the tail. All these differences are best seen when comparing two turtles or a proven pair.

Thanks for reaching out about Bob Luigi and including a photo. Males typically have two differences than females, but sometimes difficult to determine. Males tend to have very long front nails. Males also have longer, more narrow tails, where the females have shorter tails and the cloaca is at the edge of the shell. Good luck.

In box turtles, males tend to have a more colorful head, red eyes, short and thick claws on the hind feet and a concavity of the plastron (bottom shell). In the image provided, it is difficult to make out these details. You can also have the turtle examined by an experienced herp vet to determine sex.

I am afraid without a photo of your turtle I cannot tell you if he or she looks healthy. You need to upload a photo for that. You can tell a male turtle by its longer tail and that the bottom of his carapace (shell) appears hollowed out, so it would easily fit on top of the rounded shell of a female. Females have a flat bottom of the shell.

Thanks for your question about Bolt. Having multiple turtles together can lead to some problems, as males can be aggressive to both other males and to females, depending on the time of year. Males don't tend to get along with each other once they hit sexual maturity, and you may end up with injuries or the need for two tanks. Males will typically only be aggressive to females in the breeding season, but the same issues can arise depending on how aggressive the male is being. As far as determining sex, it is difficult to tell visually what sex they are until they are a bit older and getting closer to sexual maturity. There are other techniques that can be utilized such as endoscopic sexing, however you would need to consult with a veterinarian to have this procedure performed. I hope that provides you with some information, and often turtles will do quite well when they are kept alone.

Turtles don't need to mate. Check his foot for signs of injury or infection. This may include redness, swelling, bruising, bleeding or discharge. If you see anything, have Pepper examined by your veterinarian or a vet experienced in treating reptiles. In the meantime, confirm adequate water depth, quality and temperature. You can review red eared slider care information here: http://www.anapsid.org/reslider.html