Everything sounds good at this point!
I always thoroughly moisten soil before use…this Sunshine Advanced with coco I’ve been using has a horrible time soaking in water and evenly distributing it throughout…I have to use hands and make sure it’s completely wet and no dry spots…
EDIT: You mention tap water…is this city water or from a well?
If from a city water (treated) source it needs to sit out for 24 hrs before use to allow chlorine, fluoride, and other nasty chemicals to evaporate…
Also it doesn’t look like Thrips to me…no black dot shit spots!