I have a sad batch of starter- actually I have two. Both attempts were started with AP and pineapple. They've been fed nothing but AP and purified water (not tap). I feed twice daily, roughly 1/2 cup starter to 1C flour 2/3C water- and it has a happy spot on my kitchen counter, ambient temps 70F or so. (It's winter in New England, so chilly for yeasties' preference I know).
They bubble lazily, and if I start to raise the hydration they may even foam- but two things. One, they never ever have risen, and two if I keep the hydration high they begin to seperate inside about 18 hours.
I have no idea what I am doing wrong. One is kept in a sterilized acryllic canister, gasket removed so as not to be airtight, the other in a ceramic canister, same idea.
I am praying someone hsa a great method I can employ to see if I can bring either of these sad starters to their full potential.
Your friend in all things Yeastie.