Lockout or a nutrient deficiency?

[HydroDawg421]

These plants have gone from a beautiful deep green to this light yellow in about 48 hours.

I'm not sure if this is a nitrogen deficiency or a lockout situation. I foliar fed a few days ago and got some very light burning. I sprayed heavily but the mix/ratio was recommended. If anything a little weaker than recommended.

I run a top feed drain to the reservoir hydro setup. Athena Blended line of nutrients with EC of 2.1 when a fresh batch is mixed. I add water as they drink and this naturally dilutes the nutrient solution. Once it hits about 1.2 EC, I will add back to bring it to 2.0-ish

Chilled water to 65 degrees, lights are 65% at 18-24" above. Controlled and sealed room. 80 degrees with 70% RH, 1000PPM CO2


THOUGHTS?

 

[Imzzaudae]

Don't chase it. Dump your solution, Clean everything and mix up a nice fresh 100% on spec solution.
See how they look in a week.

 

[HydroDawg421]

Don't chase it. Dump your solution, Clean everything and mix up a nice fresh 100% on spec solution.
See how they look in a week.

Thanks. I dumped, cleaned and added straight water and then turned the pump on for 90 minutes to flush. Then I emptied again, rinsed, filled and mixed a fresh batch at 100% on spec.

We'll see what happens. Thanks!!!