i have a problem with my grows, i have a cousin whos very experienced and knows allot about growin, but this he cant get right, we use the same furts the same ec and ph rhodes and the same soil! even the same lights which is 400watt, the only thing different is water!! iv tried 3 times in this same room and failed all 3 times while his have grown really nice dark green with no trouble!! wats happenin with mine is the new shoots are coming through really pale yellow and slow in growth! these are a week old and i was using my tap water with ionic grow and rhizotonic the same as my cousin and his are fine but mine arent and ph to 6.2! what could this problem be?? any advice is welcome cus i really need some!!