You ever track your tank numbers? Haven't seen you mention what your ppm's and pH are doing.
Just set something under the pots. An inch or two. Then they’ll drain or is it plumbed in with a bulk head?
Water in the bottom isn’t going to cause them to drown even stagnant water there is so much hydroton that they are getting plenty of oxygen. Why do you have 4x 600w plus leds? Let’s see a pic of your entire setup.
Possible light stress ?
You also mentioned your PPMs rising it means your plants are drinking water and not the nutes I wouldn’t be upping the PPM any more
nice!puffy leaves.I have almost the same setup, first time using hydroton in 2 wilmas.
2x600hps
2xwilmas xl 8 sites
Sterile diy nutes (0.9ec)
Ph 5.8 drift to 6.5
Feeding 24hrs
View attachment 4396596
I have almost the same setup, first time using hydroton in 2 wilmas.
2x600hps
2xwilmas xl 8 sites
Sterile diy nutes (0.9ec)
Ph 5.8 drift to 6.5
Feeding 24hrs
View attachment 4396596