Muddier Mud

A liquid that would act like brown water that is harder and slower to swim in like lava. It would spawn in swamps and could be a way to turn regular skeletons into boggeds like powdered snow turns them into strays. If liquid mud comes in contact with lava it makes a mud block and if it comes in contact with water it would dilute and turn back into water. You could make it by putting a mud block into a cauldron full of water. (Note just like lava you can't make an infinite source, but you possibly could with dripstone)