Although they would work well together, they should be in an aquarium of no less than 29 gallons if you want them and the skunk shrimp.
The Bass will defend a territory and may become belligerent, in an annoying sort of way, rather than hostile. The Bass should be in a 20 gallon if alone or 29 with the Yellow Assessor.
The shrimp will be left alone if the shrimp is large enough.