starter has very little activity
I'm making a starter for the first time and think I am having some trouble. I used the "pineapple juice" method and started seeing bubbles and hooch after about 5 days. After about 8 days i was seeing a lot of activity after feeding it. Now it has been about 10 days, and several hours after feeding it gets small bubbles, but not very many, and it doesn't rise. I'm keeping it in a warm place, using filtered water and whole wheat flour. I took about a half cup of the starter and added a half cup of flour and enough water to make it seem like the right consistency. Am I doing anything wrong? Do I need to start over?