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Just did a res change three days ago. There's a total of 65 gal of water in my system for 12 plants. I had to use pH down because the nutrient strength I wanted (550 ppm) only brought my R.O pH down to 6.4. I adjusted it to 5.8, where it has stayed for three days. The question is, in three days...

I have been vegging plants in dwc for 2 and a half weeks. They've grown up to an average of 16 inches tall in this time. The leaves started to curl under on the leaf edges and the tips. The tips aren't burnt at all and the ppm/pH is 500/5.7. Res temps average 68-71 degrees at the most. --The...

I was wanting to prune the sucker leaves from the lower portion of my plants and was wondering if this was ok to do right before switching to 12/12 or if that would be too much stress on the plants. On a side note has anyone had success using a .5-.5-1 or .5-.5-2 ratio in early flower with the...

*First post* I was hoping someone could clear this up for me. I have some leafs that are curling up and some that are curling down (on different plants, leaf edges only, not like a canoe.) This is a 12 module undercurrent DWC. Two 600 watt hps about 2.5 feet from canopy in a 3.5x4.5 growing...