Quote Originally Posted by headshake
if you are running distilled or RO you NEED calmag+. check it:

http://boards.cannabis.com/hydroponi...lmag-plus.html

also posted by the amazing StinkyAttic!


-shake
Great. Sheeesh I thought the GH flora three part system had enough in it? Where can i buy calmag? Local stores or is it internet only? Thanks :rastasmoke: