WW clones four weeks old, on NFT table indoors for 2 weeks. Nutes EC was 2.0 now backed off to 1.3 as I suspect nute burn???? PH 5.9 - 6.0 2 x 600w in 7ft x 7ft area, again backed off to 24" although never close enough to burn IMO before. Growth very rapid at moment and roots spreading...