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i realize this thread is old but hows your critical jack looking? ive got some almost 4 weeks old and all but one seem quite leggy. one in particular. did yours get leggy?

RO water btw. What I mixed last night ended up around 560ppm

ive been letting it swing to 6.2-6.3 and last night i mixed up fresh nutes and went a little stronger. i havent fed them any yet cuz its my first time working with rockwool and i think i let the pots get too wet so i was gonna let them dry out for awhile first. thanks for the reply :-) Have u...

i was wondering if other dm gold users are ph-ing their reservoirs to 5.5 per the instructions. i ask because thats what im doing and my seedlings are yellowing. theyre about 2 1/2 weeks old and my nutes are around 300 ppm. not sure if i should raise the ph a little. they seem healthy otherwise...