If you use RO or distilled water you NEED CalMag Plus

[khyberkitsune]

Not if you run the Lucas Formula :rastasmoke:

I found the LUCAS formula lacking for most of my plants. CalMag was definitely needed, though not by bottle directions, maybe half that.

YMMV, depending upon your water supply, I guess.

khyberkitsune Reviewed by khyberkitsune on 02-24-2010. If you use RO or distilled water you NEED CalMag Plus That's all. My fingers were cramping from typing it n times a day. Rating: 5