Mine doesn't fast. Male and over 1200g last time I weighed him. I've had him for two years as of mid next month- he was 300g when I got him, so he's probably at least 2 1/2. He's "refused" one meal ever, which I'm pretty sure he would've taken if I left it in with him, and decided he didn't want to strike but wanted me to leave it to eat at his leisure for a couple after that. He's now back to striking and struck all winter last winter despite spending tons of time roaming around looking for the ladies. He has a fat soul.