Need some advice, the problems keep evolving.

Hey guys, i never had a problem so persistent and i really dont know what to do. I posted here before but the problems were not so perseptive. I already ask some friends on the grasscity and they told me could be zinc defficiency, and as the micro supplementation was not successful... Im starting to worry.

Watering PH 6.2-6.6.
PPM -500-700

Nutes organic, Biobizz or organic teas ( like worm castings tea, cammomile etc)

Looks almost like nite burn, 5-700 seems a bit much for a plant at this stage?

How are you pH'ing? Might not need it if your using good soil

Not sure about biobizz organic, but usually you cant get a usefull ec/ppm reading with bottled organics.

What soil?

What order is your feedings?

Have you backtracked how much mag you may have given them, non at all? Or tried lessening the feed?

I started with a neutral ph soil, 50% sunshine, 30% perlite, 20 %fibrous sphagnum ( i like it and always use, its almost like coco). Great white for micorriza. Started with the fert in the 2 week, 1ml/L of alg-a-mic and 1ml/l fish mix or biogrow and fert only once /week. This concentration give me 400-500ppm, the rest is my water.

temperature mid 70.

All my veg stop growing or is way too slow...

The problem is only with the indicas or the hybrid with high indicas genetics.


Try to give them less feed, the problem is my water is PH 8 and i need to correct it. Im using all organic, so no ph down or sulfuric/nitric acid ( already try with lemon im my last grow, it didn’t hold for long, usually 1-2 days). I like to give them 1-2 ml/l of alg-a-mic just to correct ph, it almost dont have macronutrients.

I have epson salt, but didn’t give them any. I could do a flush, but again, ph 8.... if you guys think its worth, i could do with mineral water.
Its possible to be a root rot, overfeeding, overwater?, in this point i don’t know......


Edited: Just for you guys know, its my first grow with indicas, I’m feeding them like sativas. I have on veg, a black diesel and a sour diesel, both sativas and doing great. These 3, a critical mass, a black domina a Brazilian OG ( OG Kush X Manga Rosa, a friend genetic).

Personally, id drop the feed lower but im not entirely sure what else your adding? I just looked up algamix and it seems to have everything you need but i wouldn't use that to buffer pH with every watering, it seems more or less like a once a month thing with small plants.

have you been adding excessive molasses or anything that may mess with the soil conditions?

Its could be a micro lockout due to the instability of your pH. Mag, Fe, Zn?
I would start with a foliar...might help to narrow it down.
And I'd also ditch the tap and go with a better water source. RO, rain, etc

The veg tea, uses less then 1/2 tsp molasses /gallon with compost or worm cast and cuttings from my garden ( chamomile, grass, etc) and sometimes a little of coffee grounds (like tsp to helps lower the PH) all that just to keep the microbes happy. I don’t think is a deficiency with so rich nutes, organic and etc, I’m starting to think about the instability os the PH.


I moved recently, and my PH pen broke during. I gave them water with PH 8 before i could realize its so alkaline... Got a new pen, and regulate everything again. I was not worried cause everyone talks that soil you don’t need to manage PH etc etc, but the runoff was like 7.4.


Or its the PH instability or a serious overfert.

If its a overfert, the foliar feeding could do more damage?

If its the instability of PH, how i could manage?

Edited: An old friend , +10yrs grower is talking about root rot, its possible?

I dont think your plant is zinc def, its too small and too young to depleted all the zinc out of the soil. It looks like nute burn.

Considering the size of the containers ... Feeding those plants in a constricted space , you nute burn them. I would have foliar sprayed these instead ... Your soil would carry the growth by itself for a while and really did not need nutes dumped in as well.

Remedy :

Up pot them into medium ...... Do not feed them , allow them to adjust to new space for a few days ... Then start a mild veg feed and monitor. You can always step up feed after awhile.

Burnt leaves will not recover. Plant will shed them later.
Keep water at 6.3-6.5.

Peace ...... I gotta go piss ... Sorry