I have recently created my first sourdough starter. ( used only 1 cup of flour and 1 cup water). I have been keeping it in a warm place and after only 24 hours or so it is developing bubbles and and a frothyness. Even puffing up a bit. The smell isnt completly there yet but I was surprised to see so much activity in one day. Does this happen normally? Usually takes longer i thought? How long until it is ready to go? Thanks all.