I have not checked daily my FC, that is my fault. And I just measured and you are 100% the FC is too high, it's at 21.
So would the following potentially work:
Day 1: raise FC to 20, add 4 pucks
Day 8: add 4gal and 4pucks
Day 15: add 4gal and 4pucks
Day 22: measure FC and adjust with liquid...