It is weird because the bigger plants look like they need more nitrogen and zinc, but also show signs of nute burn. It could be a lockout condition.
What is the PH of your water? What nutrients are you using?
Because of over watering, consider mixing a bunch more perlite in your soil. Maybe 20% more. That will really allow it to drain through while keeping the soil moist enough for growth without being completely saturated. You'll water more, but the trade off is great.
What is the PH of your water? What nutrients are you using?
Because of over watering, consider mixing a bunch more perlite in your soil. Maybe 20% more. That will really allow it to drain through while keeping the soil moist enough for growth without being completely saturated. You'll water more, but the trade off is great.