Hello! I am new to sourdough. I was given a starter that takes 1/2 cup of sugar, 3 tbsp of potato flakes, 1 cup of flour, plus 1 cup of water to be fed daily x's 2. Can I change the feeding without disturbing the starter? I would like to be able to feed just flour and water daily. Can I stop feeding the sugar and potato flakes?
Any help is appreciated.