Brown spots and dying leaves

[Metallicide]

To start I've grown 4 plants successfully so still very new.

I had a gg4 that developed brown spots then yellow leaves which curled up and died. I chopped it. Now my strawberry cheesecake is doing the same. None of my other plants using the same nutrients and soil are doing this. The only thing those two had in common are they were flushed with sledhammer.

I have tried flushing again with just RO water then adding cal mag and tiger bloom but it continues you to get worse.

Temp: 75/63
Humidity: 50
Lights: 2x California lightworks solar extreme 500s
Soil: happy frog
Water: well water before softening system. Ph to 6.5. Before nutes under 200ppm
Nutes: tiger bloom
Runoff ph/ppm: 6.7 and 900
Air: intake and exhaust, few fans

Thanks for any help. Id hate to chop another.

 

[Metallicide]

Bump

 

[Im-No-Expert-But]

Hey man, Im no expert on what is going on with you plants. Although If you've been running ph about 6.5 I'd try bring it down to 5.7 or 5.8 for a few waterings.

 

[Metallicide]

Hey man, Im no expert on what is going on with you plants. Although If you've been running ph about 6.5 I'd try bring it down to 5.7 or 5.8 for a few waterings.

I can try that. Leaves are dying so quick I'm wondering if it'll make it to the next watering lol. Still a lot of good green foliage though. Thank you for your advice.

 

[Waira]

-- water softener you say? Is it an ion exchange type, recharged with salts? .... the recharging process saturates the resin exchange medium with a huge conc. of salt soln., stripping off the captured CaCO3... when it's back working again, the CaCO3 binds to the resin beads, kicking off 2 of the salt ions... It's eithe K or much worse, Na which is toxic at low levels...
Flushing won't help if the water is softened, but will leach out some nutes... If there is a big salt ion load in there, it'll cause a variety of problems, starting with antagonistic uptake issues... Adding more nutes back makes matters worse, not better, so right off the bat it's likely you need to flush with RO/Di/low ppm drinking water, and test the run-off for ppm's and pH,....