Thanks for the replies! I think it just freaked me out because I’ve done 30 batches and I’ve never seen more than about an inch of mass at the bottom. The pic is deceiving because its a solid 4 inches. I did use liquid yeast for the first time. It was called “wyeast” or something like that. You bust the pouch inside the pouch and have to wait a few hours if that rings a bell with anyone.