My buddy's been having the same (woody/purplish stems)issues in his grows.I am thinking it's because he uses hot water in conjunction of cold tap water in his rez.I 've heard of calcium build up in hot water tanks if not flushed every so often.Could this be locking up his phosphorus in his plants???
CO Finest and anyone that would like to chime in..
I am still working on my 10x11 room,and still contemplating on whether to go with 4 mars 1600 or 4 1k hid.I am thinking if i go with the LED,i don't have to ventilate the lights just the room.But would the yield be the same as the 4 1k??.I am a...