Incidentally, around 1kg is the proverbial "I'm gonna mess with your head and fast until you go nuts" wall. If she's right around that weight, that might be what you're up against. In that case, I have two suggestions...

1. Offer f/t, but less frequently. If you feed every 7 days, cut back and offer food every 10 days or so. If she takes food, go back to the normal interval.

2. Get a nice Boa. Whatever the BP refuses, I bet the boa will eat it!

I haven't had any feeding issues of my own yet (knock on wood), but I have also heard that varying the intervals between feedings can help decrease the likelihood of fasting issues. I vary my feedings between 5-7 days, with the occasional extra day or two, depending on my work schedule. You could also try dropping a thawed and warmed prey item into the cage at a completely random time of day.

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