Hi SpaceNeedle... Question... I just read this sticky... If you use RO or distilled water you NEED CalMag Plus... About 2 weeks into the grow cycle, I started tu use RO water because the PPM were 400-600 from the city... I am using GH (for hard water).. I am NOT adding CalMag Plus... do you suggest I get some?

Thx
MB
DelCerro Reviewed by DelCerro on . Waterfarm 8 Hi..., and thanks in advance for your help. I have read a lot on these forums and now have questions of my own ;-) ... I have an indoor growing room with a waterfarm 8 using hydroton and GH nutes. I am on my first crop which was started from plants that were almost 2months old as a friend was growing them for me as I put my room together. I lost a couple during the transition do to the roots not catching in the hydroton (the rockwool the plants came in too big..., learning lesson ;-) I Rating: 5