help! is this ich?

New fish owner! 20 gallon planted tank with 16 neon tetras and this lovely guy. He’s been in here for about 5 days now. Just tonight i noticed these white spots. I think it’s ich, i’ve heard heat and salt or copper for treatment?

New fish owner! 20 gallon planted tank with 16 neon tetras and this lovely guy. He’s been in here for about 5 days now. Just tonight i noticed these white spots. I think it’s ich, i’ve heard heat and salt or copper for treatment?