Well as for the grow itself what i found was a wierd sort of uptake issue...but then i realized it was a burn or deficiency mabey from the light itself...time (like 5 months)...then i started to fuck with the magnesium uptake...the best solution i found was lotsa pearlite.....or...heat mats...i dont think the led lights stimulate enough photo-synth to cause enough transpire of h2o from the plant ...i see some of the dedicated LED growers have found solutions to this .seems obscure to me... i find the total saturation of tradirional lights makes it easier and less interactive...also , I might add that i dont trust the fact that these things will last the promiced duration....and no i never finished that grow..i added hps and it was fine.....im froM canuk land ..gotham hydro doesnt keep records of CN transactions...so they blew me of....BEWARE CANADIANS, GOTHOM HYDRO OF NEW-YORK STATE WONT WORK WITH WARRANTEE,,,,AS OF ALL THE BIZ ...ITS NOW OVER.!