I want to thank you for starting this thread! This is my first season and I started breeding a 500g male. Yes, I know that's not advised for beginners, but I told myself if he ever lost much weight, I would pull him. Now, I always wondered what "much" would mean to me. Luckily, he's not lost anything but gained about 150g (last weigh in was 650g). He's an eating and breeding machine. However, if the time comes and he does stop eating for me, your thread will give me some valuable information. I may not need it this season, but I might need it in subsequent seasons.

Thank you to everyone who has posted.