barneys farm lsd

hello, first of all. i have 2 main question. 1. does hydroguard kill or keep algae away? 2. my plant is stunned and some of the leaves have brown vein/spot on them. how do i combat this problem? is this an algae or nutrition issue? info regarding my setup: i have been closely following this...

Hello to all. This is my second grow. I am growing barneys farm Lucy, outdoors. I'm using ffof, grow big, big bloom, and tiger bloom for nutrients. She is starting to flower, and is about 9 ft tall. The problem is; the fan leaves are turning yellow and falling off. Some of the smaller leaves are...