Your plants look just about perfect.
I can't see the dots you speak of, or any significant tip curl.
You can get in the habit of misting lightly with neem or coriander oil to prevent pest damage, and don't forget to re-pot on a good schedule since that is a peat-based soil. And go easy on the nutes since the soil is already prefertilized- you might start to see some fert burn at some point; just be aware of the brown tip symptom and be ready to flush if you see it.