Brazilian Black Health Question

Sammi2

Arachnopeon
Joined
Mar 17, 2025
Messages
6
Hello,

I'm looking for some help. I got this beautiful Brazilian Black in September, when he came to me he had this what I believe to be fungi infection on his back due to poor ventilation and too high humidity. He was placed into a brand new enclosure which was much larger than the original and has better ventilation. He shed in September and the issue went away however it has returned. I'm just wondering if anyone knows what this is and how I can treat it and prevent it from recurring again.


Chase..jpg Chase.jpg

Thanks in advance
 

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viper69

ArachnoGod
Old Timer
Joined
Dec 8, 2006
Messages
19,038
Not fungal- normal

if you think it’s fungal only a vet test will tell you for sure

Will say that it’s damn GREAT to see someone post some QUALITY images that are focused properly god damn it! Makes answering questions EASIER!!
 

jennywallace

Arachnosquire
Arachnosupporter
Joined
Apr 23, 2023
Messages
147
Looks like setae that have been kicked off and dislodged to me, nothing to worry about if it is.
 

Mike41793

Arachnoknight
Old Timer
Joined
Apr 14, 2013
Messages
210
Not an expert on stuff like this by any means but the brown stuff for sure looks like substrate and if you're referring to the Gray part that just looks like a bald patch from kicking some hairs to me. From seeing the pic it doesn't scream problem to me. Curious what others with more experience with this sort of thing think though
 

Sammi2

Arachnopeon
Joined
Mar 17, 2025
Messages
6
Thank you 😊 for the comments. Feel better now knowing it might just be kicked hairs I'll keep an eye on him it's a shame he wouldn't let me marvel at him fully haired for just a little longer
 

Andrew Clayton

ArachnoHelper
Arachnosupporter
Joined
Dec 19, 2018
Messages
878
Hello,

I'm looking for some help. I got this beautiful Brazilian Black in September, when he came to me he had this what I believe to be fungi infection on his back due to poor ventilation and too high humidity. He was placed into a brand new enclosure which was much larger than the original and has better ventilation. He shed in September and the issue went away however it has returned. I'm just wondering if anyone knows what this is and how I can treat it and prevent it from recurring again.


View attachment 493093 View attachment 493092

Thanks in advance
Just picking at nothing here now, you got the best advice possible already. All I can add is try and use there scientific name, obviously this species there is no doubt in the common name but there are many that can cause an issue. Also hasn't shed, it moulted. Reptiles shed there skin, invertabrates (Tarantulas) moult. This is a completely different process. To explain it in human terms, a tarantula has what's called an exoskeleton, basically there bone structure on the outside of there flesh structure. They will continuously grow there flesh structure under the bone structure, then when ready, break the bone structure open to reveal the new flesh structure, which in turn hardens to the bone structure again, and the process repeats.
 
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TheraMygale

Arachnoprince
Arachnosupporter +
Joined
Mar 20, 2024
Messages
1,301
Thank you 😊 for the comments. Feel better now knowing it might just be kicked hairs I'll keep an eye on him it's a shame he wouldn't let me marvel at him fully haired for just a little longer
Do you have photos of before it molted? Just to compare and see if it is the same thing?

This balding will grow as it ages. They have their golden years too 🤣
 

Wolfram1

Arachnoprince
Active Member
Joined
Jul 1, 2018
Messages
1,542
Not fungal- normal

if you think it’s fungal only a vet test will tell you for sure

Will say that it’s damn GREAT to see someone post some QUALITY images that are focused properly god damn it! Makes answering questions EASIER!!
agreed

also they have a "mirror patch"

so called because they have a distinct circular area of urticating-setae on the top of their opisthosoma that reflects light in a metallic golden sheen (from certain angles)

when they kick them lazily, the urticating-setae sometimes just disloge from the abdomen without falling off, trapped by the longer, 'normal' setae in between

what you can see in the picture are these loose urticating-setae
 
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