Yeh bro it is. Keep pH of nuts an water at 6. I'm using it. It is the bees knees. Easy to overwater. The canna Terra line of nutrients is designed to be run in this medium too.
I did. Was eye-opening. I tried the gladiator bean muncher diet where I ate alot of chickpeas and beans and veges but couldn't lose the taste for STEAK!!!
Sooo.... The title says it all...what's your highest yield in a 4x4 tent grow. Don't hold back on info...medium, nutrients, techniques used, flip time blah blah blah