Deficiency?

Phytoplankton

Well-Known Member
Those nutes are synthetic, have you done a flush to remove the accumulated salts? It looks like it needs a bit more N, but N may be locking out from the salts. It's not the only possibility, but it's an easy one to fix. Flush the plants with regular water, 3x the volume of the pot. let em dry and then go back to feeding.
 

big_expectations!

Active Member
Those nutes are synthetic, have you done a flush to remove the accumulated salts? It looks like it needs a bit more N, but N may be locking out from the salts. It's not the only possibility, but it's an easy one to fix. Flush the plants with regular water, 3x the volume of the pot. let em dry and then go back to feeding.
They are in 5 gallon pots so your saying put 15 gallon through each one? I suppose it need to be ph balanced as normal?
 

Phytoplankton

Well-Known Member
They are in 5 gallon pots so your saying put 15 gallon through each one? I suppose it need to be ph balanced as normal?
Yes, 15 gallons per 5 gallom pot. Doesn't really make too much difference, unless the tap water is brutally alkaline or acidic. But it certainly won't be a problem to PH the input water for flushing.
 

Johnny15

Well-Known Member
Just following gh feed chart..don't have a ppm or ec meter so giving suggested ml per gallon and adjusting ph after to 6.5 and yes till runoff
Following the GH feeding chart in FFOF is your problem. Looks like lockout. I see nitrogen toxicity and potassium deficiency. If you want to use salts you're better off using a sterile medium. Flushing the soil might help but you should check the ph too.
 

big_expectations!

Active Member
Following the GH feeding chart in FFOF is your problem. Looks like lockout. I see nitrogen toxicity and potassium deficiency. If you want to use salts you're better off using a sterile medium. Flushing the soil might help but you should check the ph too.
Putting water in at 6.5 ph but runoff is coming out between 5.3 to 5.8
 
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