I've found this article that explains what you have to do to clean your tent.
https://www.airoclean420.com/blog/tips/how-to-clean-a-grow-tent/
hope to be helpful
Yea or alcohol. Pretty much anything that will kill mold and not leave any harmful residue is a good choice. Bleach in a tent could be scary, make sure you have good ventilation no matter what you use.