Can I suggest you use half of recommended amounts of nutes for the amount of gallons your system is and then add back to get you up to your target in hydro less is better. I use current culture and I run half recipe and then add back to reach my target of what they say optimum ppms ec and tds should be.
Make sure water level lower than seedling plug but higher than bottom of baskets. Also ensure your circulation pump is operating, But your husband's heart problem's complicatingThat guy may have left here a decade ago.. but I just read the post todayI have the same problem and am fighting with over water ?? under watered, ?? nutr low ?? nutr high ?? goes to total droop.. then seems to come back nice.. then total droop again.. droop seems worse a few hours before lights out