When the bud opened up, cala lily is what came to my mind, too. An aquatic form of cala lily. The resemblance is definitely there. I wonder if Anubias are the aquatic counterpart to the terrestrial cala lily.
Yes, it was a lovely flower. I hope for a repeat performance someday.
I also have nanas in my 20, much smaller than this one -- maybe one of them will bloom sometime, too.
One thing this proves: Live aquarium plants can grow and thrive in an all-gravel substrate. Mine is.
I love my Dojos; my Dojos love me,
As long as I feed them, happy they'll be!