What does "in blue" mean?

I've seen the term "in blue" used several times referring to feeding BP's. I read in one post in the Rainbow Bridge that they'll "never feed in blue" again because it killed their snake. I'm trying to cover ALL my bases before I get my first pet snake and if "feeding in blue" can kill a snake, I really need to know what it means.

In blue mean in deep shed which will give a blue hue to your snake.

"In blue" is a thing that happens a few days before a snake sheds its skin. It's eyes get clouded over for a day or two and can sometimes have a slightly blue tint to them. Usually during this time a snake will not feed if offered food. The actual blue-invite of the eyes isn't what killed the snake. I'm sure what happened in the incident you're speaking of is that they put a live prey item in with the snake and the snake wanted nothing to do with it. Then the mouse or rat bit and killed the snake.


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For ball pythons it is the secondary stage for shedding. The primary is often a pinkish hue to the underside of the snake some theorize to be a reaction to the oncoming shedding of skin, much like how you would get a rash or hives. The secondary stage is when the skin and eyes become dull and the eyes look cloudy or milky. The blueish tint is where the term "in blue" comes from. It is actually the process of old skin separating from the new growth. Shortly after this the skin and eyes clear up and the snake will before long shed their skin. These last two steps are often a time when the snake expends energy and is feeling vulnerable so for ball pythons, the act of feeding can be stressful and isn't recommended. Occasionally some owners find their snakes eat during this time but as a rule of thumb, just avoid feeding when you see your snake's eyes get cloudy.

The above replies have been spot on with describing what "in blue" actually refers to.

To piggy back on the feeding part...
Feeding while in blue definitely didn't kill the snake. The reason many people, myself included, don't feed while snakes are in blue is simply because they won't eat. While in blue, snakes eyes are clouded over, which results in compromised vision. The snakes are essentially blind at this point and therefore feel vulnerable. A snake that feels vulnerable will often refuse to eat because the added weight of a prey item in their system, combined with the digestive process would slow a snakes escape if a predator were to appear.

Of course, there are exceptions to the rule. When I get a new snake, if their scheduled feeding day falls while they are in blue I offer once. If they refuse, which most do, I never offer again while in blue and feed the day after they complete their shed and start a new feeding schedule from that day.
If the snake does eat, which my Cal King does, I feed as usual.

This my img in blue or zombie eyeshttps://uploads.tapatalk-cdn.com/201...29a1947244.jpgshe gets like a blue sheen ,I know it shows up more on darker snakes


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I figured I would share the only pics on my phone that illustrate "in blue" vs "normal".
This is my brand new Borneo Short Tail Python in both phases...https://uploads.tapatalk-cdn.com/201...13b098458f.jpghttps://uploads.tapatalk-cdn.com/201...8563c4c5a7.jpg


As you can see, his eyes and skin are both hazy and have a dull, blueish tint in one pic, but in the other his eyes are clear and his skin really pops.





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All of these reactions are spot on,

On the contrary as well, all my snakes feed during this phase if it so happens to be feeding day at that time. Maybe because they have never eaten live prey and don't know any difference

My guy also eats while in shed. He gets f/t, so he doesn't have to worry about it attacking him. Each snake is different though. There's a really helpful guide to the shedding process - maybe someone can link to that for you? The key is to disturb them as little as possible if you notice they are shedding, as they will typically become more nervous and will sometimes stay in their hide the whole time.

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