Suggested Tub Size

I have a 450+ gram size Pinstripe ball python that is currently in a 15quart tub. Should I put her into the next bigger size tub? I think 28quarts? I have 1000+ gram females in 28 quarts tub, I think that seems a bit big for a 450+gram snake. So, question again is should I keep the Pinstripe in her current tub?

I personally would not change yet. I usually move them at about 800g- 1000g. They just eat better in a more snug container.

Is the tub in a rack? If so I think you could move her up to a 28 qt. without any trouble. If it's just a loose tub, you might have to clutter it up with some crumpled newspaper or fake plants to block some of her view and make it feel like a smaller enclosure if she starts acting stressed. My 100 gram baby is in a 38 qt. and she's doing just fine, but she's in a room that has barely any traffic at all, so...

Semi-rack system. They are in a room that is small with a big solid wood door. I think it is pretty calm and quiet in there when the door is close. Thanks. I think I will keep her in the smaller tub until she is bigger.

I put my baby BPs straight into a 32 qt tub with multiple hides. Haven't had an issue yet, but every snake is different.

A 15 qt tub seems a bit small for your BP. At this point I think you could move her to the next size up, unless you don't use hides. If you don't use hides, the 15 qt is probably alright for now.