Sorry for the mistake, I meant in my post the difference between fontanus and zipper, I just miswritten what I meant to say. Anyway, the debate is quiet helpful
So, in your opinion, it is especially a question between F. Fontanus US vs Singapore?
Maybe I'll post new pics later including the moss + anubia nana var "petite" plantlets to show better the size. The "Petite" is smaller than the common var nana. Maybe this is what is confusing you in my photos? Also, the green is rather dark, compared to the light green I saw on some forums