Hi and welcome to BYC

So sorry for the circumstances. I'm going to ask a bunvh of questions so that folks who can help will have more information.
What are you feeding them? Be specific and include treats and quantities.
What does their poop look like. Be specific
Can you post pictures?
Is there any blood in their poop?
(already asked but will put it here too) Have they been wormed recently?
I would recommend getting some nutri-drench and administer it as quickly as possible.
@Ravynscroft @Pyxis Can you jump in here?
Wish it were under better circumstances but we're so thrilled that you've decided to join us