u/Apprehensive_Tax757

I made my first cider/wine thing a few weeks ago with apple juice and eyeballed sugar + yeast and a loose lid. I did the same thing a week ago with different juices, but there's strange sediment at the bottom, and I'm unsure what it is/why it happened. It stopped bubbling already, which is much sooner than last time but I put less sugar. In case it matters, one of the juices are apple+mango, and the other is multifuit. Would appreciate any help or advice!