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Species modifiers are used to change species of liquid particles. You can for example use it to change color of the liquid, invert gravity, or change any other parameter that can be configured per species.
Right click in Hierarchy, and select “Zibra Liquid -> Species Modifier”
Note that if you right click specifically on your liquid object you can skip step 2
Open Inspector for your liquid object, and press the Add button in the list of manipulators to add. You can also use the Add all button to add all manipulators to your liquid instance.
You may also need to expand the list of colliders to add by pressing the “Add Manipulators” button first.
Target Species
Defines which species the particle will get after modification.
Probability
Defines probability that a particle inside a species modifier will change its species each frame.