f! species

t3/main.py

@@ -1054,21 +1054,22 @@ def trsh_rmg_tol(self, factor: float = 0.5):
                 self.logger.info(f'Regenerating the RMG model with a tolerance move to core '
                                  f'of {factor * core_tolerance[self.iteration]}.')
 
-    def species_requires_refinement(self, species: Optional[Species]) -> bool:
+    def species_requires_refinement(self, species: Optional[Union[Species, ARCSpecies]]) -> bool:
         """
         Determine whether a species thermochemical properties
         should be calculated based on the data uncertainty.
         First check that this species was not previously considered.
 
         Args:
-            species (Species): The species for which the query is performed.
+            species (Union[Species, ARCSpecies]): The species for which the query is performed.
 
         Returns:
             bool: Whether the species thermochemical properties should be calculated. ``True`` if they should be.
         """
         if species is None:
             return False
-        thermo_comment = species.thermo.comment.split('Solvation')[0]
+        thermo = species.thermo if isinstance(species, Species) else species.rmg_species.thermo
+        thermo_comment = thermo.comment.split('Solvation')[0]
         if (self.get_species_key(species=species) is None
             or self.species[self.get_species_key(species=species)]['converged'] is None) \
                 and ('group additivity' in thermo_comment or '+ radical(' in thermo_comment):