Setup
The numbers
Thermal gradient
A real gradient, 29–32°C warm against 24–26°C cool, so the animal chooses. The sheet states no separate night figure.
Why
Same scale on every sheet here, so two species compare by eye.
The sheet stateswarm 29-32 °C / cool 24-26 °C
Humidity
The sheet states40-50 %
UVB
Not needed for this species
Stated in the sheet, not inferred.
The sheet statesthey have no requirements for UVB however, if you chose to add UV lighting Bull Snakes require Ferguson zone 2 lighting
Traceable. The figures above appear in the page we cite, which we opened on 10 Aug 2026. That means you can check them, not that we have confirmed they are right. reptco.co.uk
Enclosure and conditions
What your climate adds
This sheet states a range to hold. Your local climate decides how much work holding it is. Pick the nearest city: nothing is sent anywhere, the choice stays in this browser.
What it needs
Every line above is deduced from a value this sheet states, and names which one. Nothing here is a general recommendation. What the sheet does not state is listed too, rather than left out: a kit that looks complete is worse than one that names its gap.
Food
Diet
Feeding rhythm
Twenty-eight days, one row. Each band is a meal window. The sheet gives several ages on one line; this is the adult figure.
Why
The windows widen as they go because the interval is a range: four meals after a 10–14 day cycle land anywhere between day 40 and day 56.
The sheet statesappropriately sized mice or rats; hatchlings can be fed pinkie mice; Feed juveniles every 5-7 days, and adults every 10-14 days
The species
National law is not global, and we hold no national wildlife law for any country, Thailand included. Check your own authority before buying or selling.
Questions & sources
Common questions
How big does it get?
1.8 to 2.4 metres and thick-bodied. This is a large snake that needs a proper big enclosure, not a rack tub.
Does it make noise?
Yes. It has a very loud hiss, almost a growl, when startled. It is a bluff, not an attack.
Does it bite?
Mostly bluff, but it is strongly food-driven and it is not venomous. A bite from a snake this size still bleeds.
How much does it cost to feed?
Adults take a large rodent every week or two, so food is affordable. The bigger cost is the enclosure.
https://keepr.pet/husbandry/en/pituophis-catenifer-sayi
Others in this group
What this sheet states
This sheet states 6 of 7 of the fields this product runs on. What is missing turns something off: day/night engine and awake count on the globe. We show the gap rather than fill it with a plausible number.
UVB is measured but does not count: it is absent from 420 of 678 sheets, and on most of them that is not a gap, since a nocturnal snake's sheet has no reason to state a UV index. Counting it would call the library incomplete without cause.