I cant imagine either of those vendors having pests. Jf is super strict with his coral quarantine procedures and im pretty sure tsa is too. And if you still havent spotted anything, unless you added live rock, you probably dont have any. It could be a lighting/flow/parameter issue.purchased 2 Monti over the past 3 months, one from Jason Fox and one from TSA. Both were dipped in revive for 10 min.
Seemed like these would be 2 trusted and clean vendors