I’m sure the first solution everyone will suggest to you is that you separate your two pythons. Give the one who has stopped feeding a nice secure home by itself, don’t mess with it for a week or so, and then start back offering it the same food in the same manner which was successful for you before it stopped eating.
I’ve had “backward” juveniles which decided to stop eating just when my other ball pythons were getting geared up for their prime feeding season. There’s nothing much you can do about that; they’ll keep to their own schedules and resume feeding when they decide it’s time. And I keep as many as three females in one large cage (I always cage males by themselves). But these are adult, long-term thriving animals. In your case, until you discover what is “normal” for your two snakes, you should start by caging them separately.
Good luck
-Joan
>>I have two ball pythons, living together, which are going to be yearlings at the end of the summer. One is a perfect eater and will eat everyday if you offer. The second, used to be the same, but now pretty much doesnt eat. During the winter he was fine, but in the past few months he has probably ate twice. I'm just worrying that he reduced his eating, while the other one is beggining to outgrow him. What coul be the cause?