More aliens!

The Lindroth are small psychic round fellas, the first spacefarers due to them being able to float themselves around with their powers. Since they passively (unintentionally) emit calming auras, due to them traveling the galaxy first they've managed to pretty much end all conflict on accident, not that anyone is complaining. They also accidentally made the whole galaxy want to get fat, due to an off-hand remark one made. "Being round is great." They meant being round LITERALLY, due to the Lindroth's naturally pebble-ish shape, but other species misinterpreted it.

The Sbalb meanwhile are amphibious peoples, living in estuaries and capable of existing in both fresh and saltwater.
The bubbles they produce for egg nests is considered a delicious condiment, due to the oils and compounds forming the outer unpoppable layer. It's good enough to make people forget that they're literally eating spit.