Discolouration

[Kymber33]

Hello!
I am new to the world of tarantulas. I recently found this beautiful girl at a pet store. She seamed quite healthy when I brought her home but in the last two days has developed some discolouration on her abdomen. And ideas what it could be or advice on how to treat it?
Attached are photos of the day I brought her home vs now.

 

[Venomous Vixen]

Wow! She’s pretty! Looks like she kicked some hairs and is getting close to premolt.

 

[Venomous Vixen]

Don’t stress it! It’s completely normal and she looks beautiful!

 

[Kymber33]

Wow! She’s pretty! Looks like she kicked some hairs and is getting close to premolt.

Thank you!!

 

[Kymber33]

Don’t stress it! It’s completely normal and she looks beautiful!

Thank you!

 

[menavodi]

Her abdomen is growing! Looking good!

 

[octanejunkie]

Welcome and congratulations

 

[Enn49]

Hello and welcome

 

[Casey K.]

That is perfectly normal. He/she just kicked some hair off of their abdomen and you are seeing the exoskeleton under the setae.