Another Update! She stopped eating for a few days after that, but gave them a freshwater dip about 5 days ago before I went out of town. I was finally able to catch the little boogers after 15 mins. 3 minute FW dip worked wonders--ALL white stuff on their exterior was immediately cleared. I just matched temp with straight tap water(no dechlorinator drops). Watching them while i'm away via camera, and they are both eating and very lively with no signs of external parasite. The Black clown is acting SO much better. still having them treated with RRR to ensure the infection doesn't come back.
also, after ~2 weeks of RRR in my DT, my zoas, mushroom, palys, and Favia are all fine. So happy the fish are looking better! I'll update again when 100% clear.