Its too bad you cant come here anymore and throw in your two cents without people becoming defensive then trying to somehow attack a persons growing skills.Yes I have had spider mites living in Fla and no I haven't seen a seedling with trichs. The eggs look exactly like that to me.You could have had them in a room with larger plants and became infected that way.Sorry I don't have a "growers eye" some mods need to thicken their skin you have "no reason" to come off as an asshole to me