New crabs- light colored injuries (?) and quarantine questions

[Hermies1123]

Hello,

I just took in three crabs from someone who could no longer care for them, and one of them has light colored marks on him (see photos-- google drive link). I was wondering what these could be? My first guess is lesions from a fight with another crab, but I want to be sure it is nothing contagious before introducing the trio to my main crabitat.

I was planning on quarantining them for two weeks (or longer if illness is suspected). Is that long enough? Besides mites and shell rot, what are some health conditions I should be concerned about before introducing my new arrivals to my primary crabitat?







https://drive.google.com/drive/folders/ ... sp=sharing

[Meg'sAussieCrabitat]

I quarantine for a month, even if there are no sicknesses. Mainly it is so that they get food and water in them so that they are in good health before they try to moult.
I'm afraid I don't know what those white marks are, though.
Good luck with your new crabs!

[wodesorel]

They can get those patches sometimes from rubbing against the edges of their shell. I've also seen it when they got sand on them while still wet from moulting. It's harmless and if he changes shells before his next molt they should disappear