i'd guess somewhere in the 5-6 month range. adam recently posted this:
Quote Originally Posted by Adam_Wysocki
... Once they hit 600 - 700 grams they get bumped up from chubs to what I call "small small" rats. 40-50 gram range. They always take 1 per week and sometimes 2 but usually never more. That's 400 grams of rats per month. If they can retain 100 grams of that, then I'm cooking with gas!! .... 100 grams growth per month should be doable.