Everything's going purple this week. Putting it down to winter creeping in and these bars really bit producing much heat. Lots of different smells excited to see how they finish
If humidity isn't a problem you could put a felt or a tissue, that is used to avoid weed on public gardens, on the bottom to suck the excessive water and let it be a moist place to the roots on the bottom of the pots. Also check if the holes on the pots are enough for the plant to breath....
Nice grow! I do suggest you an auto watering system that water up to 12 plants, it's cheap from china. It suck the water from a bucket and irrigate the plants when you program that to. Easy...
As you are using hydro nutes it's perfect.