What is this?

Green Refuge said:

Hot damn brotha that's a beautiful plant. Knock on wood. You measure runoff in soil ? What should it be at in organic soil ? I tried to measure it a couple times but there's too much soil particles that probably count in the reading. I was getting 1 to 4 thousand ppm.

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How does she look guys. The leaves color still seem a little on the darker side. Im fed only once this week, and gave it plain water. This is week 6. Ppm were reading at 628 this watering. Think im just gonna let her continue to eat the nutes she got. How low should I let the ppm drop before feeding. Does she still seem to be over fed. She looks a little lighter compared to what she was.