Does anyone know the difference between Dutch Master Zone, and Dutch Master Zone Gold? I'm using DM Zone Gold with Dyna-Gro nutes. I was just wondering what's the Zone in a black bottle all about. I couldn't find it anywhere, so I just went with gold.
pretty sure the black bottled stuff is just old stock. I'm not a 100% as they came out with a "gold" range of product but zone is zone as far as i know, unless they revised their formula or something.