We purchased a young 77g female Lesser from NERD, at White Plains Reptile Expo at the end of November. She is one of our only 3 BPs. I got my first BP only a short time earlier, at the previous expo, in September. I handle all three extensively.

Each of the three have distinctive personalities, but all are a joy to handle. However, Spectra, the Lesser, has gotten into the habit of hissing as I approach her in her container, to take her out. She has never tried to strike.

I can't identify any sources of stress, beyond being disturbed to be taken out, in itself. They're all kept in individual Sterilite bins in a rack, have spot on temperature and humidity levels and a hide on both the warm and cool sides of the bins. She has gone through one very nice shed, since we've had her. All three snakes eat fabulously.

Once she's out, she relaxes nicely.

Is this hissing something that is likely to subside, wih time and more handling, something I'll just have to accept as part of her personality or should I be doing something differently, like handling her less?

Thanks in advance from a BP noob!