So the red bugs that were only on the one frag and not proliferating... yeah they were on some expensive new frags and were starting to gain ground. I decided to go ahead with treatment.
Managed to catch one of my new porcelain crabs and the only 2 little hermits I have and put them into my high-end qt system which is elevated out of cat territory:
The other porcelain and my cleaner shrimp evaded all my traps and baits so best of luck to them I guess. It's about 10 hours later and I can't find any bugs and both remaining critters seem to be eating and frolicking about like before so my fingers are crossed.
I swear my PE on the more heavily affected piece is already much better!