Lights too high and too much N will cause stretching.
That's quite a stiff nute solution. Did you see tip scorch?
85'F isn't outrageous, but 60'F is getting on the low side. Try to keep temp differences less thatn 15 degrees apart.
Do you have some sort of aerator in your reservoir? That's a good thing to stick in there, even a cheap aquarium air stone and pump.
stinkyattic Reviewed by stinkyattic on . a little problem Hi folks, I am a newbie and have a little problem. Background... Ebb and flow, watering about 15 minutes every two to three hours GH nutrients, ppm is about 990 PH running around 6 pretty consistently room temp avg around 83 maybe a bit higher sometimes airflow, constant new outside air, 4" duct with small duct fan fan on the plants clay balls (forgot name) is the growing medium Rating: 5