North thunderfuck automatic

After 3 weeks of rainy days finnaly Thunder took some direct sunlight and heat. Leaves got kind of white mold on them thats why I decided to cut some. Weather was similar to autumn peroid and as beginer I think it is caused by this but could be wrong. I hope that mold will not spread for all of them as it likes to be. Finnaly pots could dry enough to feed plants with some nutrition. I did watering with 5L (1.3EC, 6.0pH) for 3 pots including Thunder.