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Some seem to claim that if your res PPM is dropping then the plant wants more food. Is this always true??

Im a couple weeks into main-lining in dwc. My ppm with GH trio and well water is pretty low and stays rather stable around 550. The leaf tips have been curling under for a couple weeks and I thought it could be due to low night temps in my basement. However now the tips of some of the new growth...

So Im about a month into my first dwc grow. The strain is purple haze. Using my well water which is 75ppm. I had upped the GH flora trio at 3-2-1 to 1000ppm with cal mag at 2mL/g and the largest fan leaves began turning yellow and had tips that started to curl down (Pic 1). The new growth at the...

She's 4 weeks old from seed. Had been vegging well at 1000ppm with flora trio then i upped it to about 1100 and this started happening. I also realize now that I planted her low in the cup. Roots look good. Any advice?

So my first two leaves showed what people told me on here was prob a cal deficiency. I added cal mag and started the flora trio in equal parts of each. Got it up to 400~ ppm and the new growth looked green and great. Then I added about another 100 ppm of nutes and the tips showed brown signs...

I currently am running a single outlet 3.2L/min pump in a 3.5Gal bucket. Will upgrading to the 7.8L/min pump make a worthwhile difference?

I've got a 2.5 week old from seed, that moved under 400W mh a couple days ago. thought spots on leaves could have been from the light so i backed it off from about 28 to 38 inches away. I am now thinking that this could be caused by the low humidity (25%) in my grow tent. Temp is around 70, its...

Hey guys, first grow here. I have a 2 week old plant that I started from seed in a rapid rooter. I moved it into the DWC bucket about 5 days, where it was under 4 23w cfls until yesterday when I put her about 30 inches below a 400w MH. Two days ago I added a very little bit of the flora gh trio...