End of Flower Week 4 / 7 from Seed: So far this grow has been quick and effortless. The autos are on a 12/12 light cycle, under the Mars Hydro TS1000, dimmed to 75%. They were watered until runoff earlier this week and each had a high ppm ranging between 2300-5400, so all were flushed with filtered water until ppm reached below 1600. All seem to be doing well as harvest approaches in the next 2-3 weeks.
Yes week 5 is EC and PH stacking caused buildup in your medium. Since I want to automate watering I'm learning about this and discovering how watering frequency of a somewhat constant content and duration is how you control a stable PH and gradually rising EC in your grow.
The beginning of this recent video shows a good example of steering feeding just keep in mind you have to analyze your own grow medium.
www.youtube.com/watch
Noticed after vigorous growth in week3 seems there was a stunting between week 3 and 4 possibly from too much dry-back and not enough microbial activity.