Thread: nitrate
View Single Post
  #16  
Old 08/06/2007, 01:13 AM
TekCat TekCat is offline
Cyanobacteria farmer
  
Join Date: Sep 2005
Location: MN
Posts: 3,126
Yep, plants need dark period to breathe. You can get safely to 18 hours photoperiod for macros. Also, bumping up photoperiod had been reported to discourage Caulerpa to go sexual.