Sneezing

[sunny]

Hey!
So my Merauke started sneezing a lot yesterday (like every 20 seconds for a short amount of time, maybe 3 to 4 minutes.)
I wasn‘t very worried; maybe he got something stuck in his nose and couldn’t get rid of it.
But now (and it’s 8AM right now) he‘s doing it again.
His cage is around 90°on the hot side, at night it drops to 70°. I keep him on a mixture of Repti Bark and Coconut Fiber.
The only thing I changed like 3 days ago was the fact that I bought a new spraying bottle which also means that I‘ve been spraying his enclosure a bit more the last 3 days.
There are no fluids or bubbles coming out of his mouth/nose and he‘s very active.
I hope someone has an idea what the problem could be

[kingofnobbys]

This can be an indication a dusty substrate (the dust gets into the nose and makes them a bit sneezy). Fine grade Kritters Krumble is prone to being very dusty , the issue might be the coco fibre you are using.

It can also be an indication of an URI.

[mb606587]

Yeah it's possible it could be the substrate as kingofnobbys pointed out. Others who have experienced this issue have had success simply by changing to a different bedding. Cypress mulch would work well for a Merauke so if the problem persists, I would start there to rule that out. If it is a respiratory infection, keep an eye out for additional signs. Mucus discharge, wheezing, gaping to breathe, droopy eyes would mean a trip to the vet.

[sunny]

Alright, thank you!
I'll try changing the substrate then. His eyes and everything else seem fine.