Home / GreenPlanet Product Support Forum / During the veg stage, could I use Calmag in addition to Part 1 or salts / Reply To: Hi, I’m on my 2nd year of using your products (Part 1 & Bloom). During the veg stage, could I use Calmag in addition to Part 1 or salts? And how do I find out if you already have those in Part 1?? Thanks