I hear ya. I primarily do I for ich, plus the prazi. I’ve never heard of a case of velvet after TTM. I’ve heard of velvet presenting during TTM, which then needs to be treated with copper or chloroquine phosphate. But not after. Maybe that experiences has been posted out there and I just haven’t run into it yet.
That is totally fair. I just have physically seen velvet be dormant for TTM then outbreak after TTM. Granted this happened once and has scared me since.
You don’t want run into it ever If you can help it. After velvet you go to watch for infection for all those tiny little holes those things make. It’s not a fun experience.