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I have a DWC setup under a 600 watt hps in a 68 liter rubbermaid. It isn't lightproof, but up until now my roots have been looking white and healthy for the past couple of weeks. A day or two ago I topped my res and upped the nutrient level to about 1000 ppm. Today I checked the roots and...

I recently pruned this mother plant for cuttings and upped the ppm to around 900 of GH Floranova Grow. It is in a DWC hydro setup. Growth looks pretty good, but leaves appear to be rusting - that is, there are brownish/orange spots scattered across about half the leaves. Anyone know what the...

I got some seeds in last Thursday (one week ago) and started germination in a paper towel. I put them in rockwool cubes that I presoaked (I don't have a ph meter nor ph up/down, so I added a bit of vinegar to the presoak). They popped out looking good after a couple of days. Approximately two...