Scratching my head

My Lemonberry Gasplant is having some kind of issue. The other 2 plants in my tent are great and they all get pretty much identical treatment.
Week 2 flower
7 gallon pot Mother earth groundswell soil 2nd run reamended with Dr earth dry amendments. Occasional teas and Roots Organic Oregonism XL microbe boosts
Soil ph currently 5.9
R.o. water with minimal calmag occasionally.
Blumat watering system
She started getting yellow leaves on the bottom like it's low N. But also curling leaves like high N. Some of the leaves also look smooth curled and not normal. The entire plant is starting to yellow and all my tops look funky.
I fed her some Alaska fish yesterday to supply extra N and no change. I don't know what it could be.
Don't think its a water issue, the blumat system works very well. I don't think its bugs either, I haven't seen any signs under or on leaves. Anybody have any insight?

I noticed that it seems like all the plants on the right side are affected, this could be bugs in the root zone, something that is very hard to catch unless you are looking for it. or possibly take a look at where the fan is and the lights, are they getting any extra or any less than the other side of the grow. they are the same strain correct? and the same soil and process and times used as the rest of the grow?

not advice or any idea what it could be, just my thought process on problems like this. just follow the steps to make sure everythings in order, like checking your pH runoff making sure you dont have lock out, and do a very thorough search for pests of all sizes and shapes, esspecially root zones and bottoms of pots. listen to your plants they are trying to tell you wants wrong, if their symptoms are spreading or getting worse that also narrows down your solution.

MarijAndrea said:

I noticed that it seems like all the plants on the right side are affected, this could be bugs in the root zone, something that is very hard to catch unless you are looking for it. or possibly take a look at where the fan is and the lights, are they getting any extra or any less than the other side of the grow. they are the same strain correct? and the same soil and process and times used as the rest of the grow?

not advice or any idea what it could be, just my thought process on problems like this. just follow the steps to make sure everythings in order, like checking your pH runoff making sure you dont have lock out, and do a very thorough search for pests of all sizes and shapes, esspecially root zones and bottoms of pots. listen to your plants they are trying to tell you wants wrong, if their symptoms are spreading or getting worse that also narrows down your solution.

Click to expand...

That's only 1 plant on the right side. There's 3 different strains in there. Lemonberry Gasplant takes up the right half of my tent. They all get the exact same soil and amendments and treatment. I checked soil ph with a Bluelab soil pen (PH 5.9) I have them scrogged, so I can't really pull it out to check the bottom of the pot. This is an organic grow so I try not to have any runoff.
3 fans in the tent moving tons of air around plus the 6" carbon filter pulling fresh air in.
My lights are 2 Mars-Hydro TSL2000 ON A 12/12 light schedule.
I water in with mosquito bits weekly so I don't think its gnat larvae.
I think it's low N. I gave her some extra and I will see if anything changes. Thanks for your input!