First time grower - need help asap! :)

mushroomcookiedough

Active Member
Hi! This is my first time growing (4 plants).

Any input is highly appreciated!

One of the plants had some "birthmarks" from the start(seedling phase).
3 days ago I noticed 2 more plants were getting some blemishes and looked a bit unhealthy, and leaves curling slightly upwards around the edges, I tried to search forever, and came to the conclusion it was "tacoing", most commonly this was because of a deficiency in magnesium and calcium. So I gave all the plants a low dose of fertilizer (sensi grow), for the first time. Now, 2 days later, the plants have exponentialy gotten worse, and I fear the worst.

Seeds: Northern Lights Auto (from Seedsman) (Northern Lights x Ruderalis) - Mostly Indica
Tent Temperature: 23-28c (73-82f)
Tent humidity: 61-73%
Soil pH: 6.5 - 7
Soil contents: Plagron Growmix (with perlite)
Light: Mars Hydro TS1000
Light intensity at the plant-level: 17-23k LUX
CO2 levels: 400-650ppm

I am a newbie, but I am really trying my best.
I have reduced the intensity of the humidifier, and will try to reach a level of 40-50% instead, maybe that will help.
I also saw some roots were visible in the soil, so I topped over with a little more soil the keep the roots covered.

A few days ago, I repotted them, as the old soil was not draining well. (I repotted with the fertilized Plagron Growmix with perlite)
When repotting, I might have cut some of the roots while moving, but I am not sure.
I suspect that the repotting gave the roots more nutrients again, and perhaps giving them liquid nutrients was the wrong decision.

Any help or advice is highly appreciated!
Reposted as I posted it in the wrong subforum.
 

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