She had a poo 2 nights ago, she was soaking after the poo, when i cleaned her tank out, i changed her water, I fed her last night, changed her water before i fed her, tonight i go to change the water and find this.....

At first i thought it might be a mite, it was about the size of a large flea.... upoin further investigation it looks like piece of a claw, tooth, or something else organic but hard.... anyone wanna take a guess at what this is? i dont have anything directly above the tank to fall in, so im curious.... She is resting comfortably after eating so i didnt wanna disturb her to check all her fingers and toes