Brazilian Black Health Question

Sammi2

Arachnopeon
Joined
Mar 17, 2025
Messages
4
Hello Everyone,

I am aware that I posted about my Brazilian Black (Grammostola pulchra) not to long ago and to begin with I believed it to be thinning hairs, however today upon looking into his enclosure I found this fluffy almost like dust lump and on closer inspection of him I found the fluffy dust on him and it a sore underneath. He had something like this before he moulted in my care so I put it down to poor ventilation in his previous enclosure. He has moulted in my care and seemed to be doing okay but now it's back. Has anyone seen this before? I could really do with some advice as this is a new species for me I have owned Grammostola rosea for years and have had no issues.



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jennywallace

Arachnosquire
Arachnosupporter
Joined
Apr 23, 2023
Messages
140
Just looks like dislodged urticating setae, nothing to worry about. The orangey coloured bit underneath the dislodged setae is just the bare exoskeleton showing where the hairs have been removed.
 

Sammi2

Arachnopeon
Joined
Mar 17, 2025
Messages
4
Just looks like dislodged urticating setae, nothing to worry about. The orangey coloured bit underneath the dislodged setae is just the bare exoskeleton showing where the hairs have been removed.
Truly??? I've never seen anything like it before we joked a little that it looked like dandruff before seeing the orange section. Do you know if this is common to Grammostola pulchra as I have a younger one and he hasn't had this issue.
 

jennywallace

Arachnosquire
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Joined
Apr 23, 2023
Messages
140
Truly??? I've never seen anything like it before we joked a little that it looked like dandruff before seeing the orange section. Do you know if this is common to Grammostola pulchra as I have a younger one and he hasn't had this issue.
Yeah it can happen with any species with urticating setae. Some individuals are prone to hair kicking more than others, so possible that your other pulchra just isn't much of a kicker.
 

viper69

ArachnoGod
Old Timer
Joined
Dec 8, 2006
Messages
18,975
Truly??? I've never seen anything like it before we joked a little that it looked like dandruff before seeing the orange section. Do you know if this is common to Grammostola pulchra as I have a younger one and he hasn't had this issue.
Yes, common to species with UrS
 

Gevo

Arachnosquire
Joined
Oct 25, 2023
Messages
124
Yes, this is common in this species and others with urticating setae. It could be that it's on the skittish side and kicks hair when disturbed (especially if it's young, as they tend to frighten more easily than larger ones), or it might just be rubbing hairs off. My B. hamorii rubs her back legs over her abdomen and dislodges UrS sometimes. She's not kicking in fright, just casually doing it, especially as she gets closer to her next molt. On the plus side, you'll have a really nice view of your tarantula's rear so you can see when it starts to darken when a molt is close!
 

Ultum4Spiderz

ArachnoGod
Old Timer
Joined
Oct 13, 2011
Messages
6,178
Hello Everyone,

I am aware that I posted about my Brazilian Black (Grammostola pulchra) not to long ago and to begin with I believed it to be thinning hairs, however today upon looking into his enclosure I found this fluffy almost like dust lump and on closer inspection of him I found the fluffy dust on him and it a sore underneath. He had something like this before he moulted in my care so I put it down to poor ventilation in his previous enclosure. He has moulted in my care and seemed to be doing okay but now it's back. Has anyone seen this before? I could really do with some advice as this is a new species for me I have owned Grammostola rosea for years and have had no issues.



View attachment 494455 View attachment 494456
urticating setae they often kick around there home to protect against rodents. And intruders.
 
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