In case people are wondering on how I decide which organism goes to which of the new Niches:
For Hex changes: Addition/Deletion/Substitution > Hex Position > Hex Rotation/Orientation.
For Membrane changes: Membrane Type > Membrane Rigidity > Membrane Color.
For Behavior changes: Depends on environment; any change, as long as Activity ≠ 0.
For Reproduction Order changes: Depends on environment; as long as the organism survives.
For Tolerance changes: Depends on environment; as long as the organism survives and osmregulation cost ≤ +20%.
In all cases, the more changes in each individual category, the better, unless it is detrimental.
If two organisms have the same number of changes in the same category, then the better combination wins out.