Rosyboas, generally speaking, utilize the same preferred temps across their range. What that means is the temps a coastal boa like Dulzura looks for and a Baja boa like Bay of LA looks for are likely about the same, or close enough anyway for what we can offer. The best thing to do is offer a range of temps from cool to warm as best you can.

I can tell you that your warm side temps are borderline or low at least for digestion of sizeable meals and for sure for females gestating young if you ever decide to breed them. Rosies can easily handle cool temps at night and a cool area in the cage during the day, but your warm side should be at the very least 82 deg, even if it is just a narrow strip of heater that that temperature. I used a strip heater in the 84-88 deg range. This is true as long as your room temps are below 80. If room temps reach above 80 and stay there much of the time, then I would turn heaters off during that time.

Your temps 76-78 could possibly result regurgitation if the food item is on the larger side. If not now then maybe one day. And with rosies you do not want a regurge, because you will have to proceed carefully after that to prevent further regurges. Rosies need sometimes 2 weeks after a regurge to get back on track and build up their digestive bacteria and enzymes that the original regurge may have negatively affected.

I had a power outage once after I had fed a handful of rosies and a group of montane kings including thayeri, pyro and mex-mex. The room temp was about 65 deg and the outage lasted about around 24 hrs. All the montane kings easily handled the temps and digested just fine in spite of no heat for the 24 hrs. All the rosies puked. Fortunately, the puking happened quickly was only temp-related so the rosies fed again a week later and successfully digested those meals. But that goes to show you a difference between rosies and montane kings.



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Mark

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