My dog recently developed a fear of his water bowl?

he is a 7 month old pit bull, not food agressive or agressive in any way at all, at first we thought it was his reflection in his metal bowl, so we switched to a ceramic one, now hes afraid of that, he will drink out of a much smaller ceramic one but we have to fill it up as soon as hes done because, well hes a pit bull it doesnt take much, ive tried switching rooms, bowls, ive used tupperware bowls giving him treats after hes done drinking, really anything ive already found online, im going to call a vet tomorrow but im just hoping someone on here may have a few more ideas, also i dont think anythings ever scared him while eating, the behavior all started after we got a new fireplace with gl doors and he discovered his reflection, he barks at it whenever he sees himself, i dont know what to do now, i know he wont dehydrate himself but because theres snow outside he prefers to eat the snow. i just dont want him to become accustomed to the snow because when its gone im worried he wont get his water. also tried putting the small bowl inside the large bowl, he wont touch it, currently i have both bowls with water right next to each other, he uses the small bowl but not the large one. any ideas where to go next??