Day 29 [ame=http://www.youtube.com/watch?v=jgKanAhPC9A]Penetrator 336X LED * Trinity Kush * Day 29 - YouTube[/ame]
So far in the grows I've done with my blackstar it seems like all the plants have needed extra CalMag. I've heard others say that about other brands. I can't prove it but I would not be surprised if thats a common trait of LEDs.