Honestly, I don't know. I had a couple of questions, had an email convo with their breeder and all seemed fine... until a "real" question occured. Well, I won't complain, it's not like these are some kind of magic beans that require rocket science to finish.
I was mad because they just ignored alot of the info I gave with a "have you tried restarting your PC" answer. Also check the logic gap: they ask me for EC and pH and then assume I'm too stupid to messure it right. IF I would be using one already, why would I use risky values...
Look at how lost I am - I think this grow will be totally dead without messuring:
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I also like how the burned one doesn't sell it's issue and went straight back to business...