Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
Plants spend a lot of the night in building new tissues, but I think they grow all the time, too. But yes, they do a lot at night.
At night they respire, that is they burn the sugars they have made during the day, and use the energy to produce new tissue.
Zapins, thank for the links about when plants take in the various nutrients.