I know it is an old post, but I made the ciabatta with a starter, so I am replying here. I used 50% ground winter red wheat and 50% winter white wheat, water 85%, 2.5% salt, and 15% starter ( 100% hydration wheat starter) , with a little extra yeast thrown in. ( this was a test pie of 150 grams flour, so the yeast was around 1/16 tsp.) I mixed it and let is rise at room temperature ( 68 F ) for around 6 to 7 hours, then balled, and let rise another hour or two. It was very thin, paper thin in part, and very wet . It tasted very good, though it was so thin, it developed a hole when I loaded it onto the stone and some of it stuck to the stone when I tried to get it out. I will be trying it again and dropping the hydration a little -