I really do not know what caused them to get sick. From flatworm x or the dead tree, or from when they reached out to kill each other months ago.Sorry, looks very sad. I think I missed how it got here...
Nems seem resilient. You got this!
But, flatworm exit + dead tree coral could have caused a reaction in both. They litterally fell ill on the same day. I just needed to be able to safely pull them for treatment.