Auto doesnt seen to want to grow any taller help

[Proph]

Imo, it's tough to say for sure what the issue is.. I've kept autos in solo cups until they sex and havent had issues with stunting.. Well, definitely not to this degree. I feel like if there was an issue in the solo cup, it would start at the bottom of the plant. If it was hungry, or needed more root space, it would have started feeding on the cotyledon and lower leaves. And those are perfectly green.. Even dark green. The yellowing is starting with the new growth.. And is starting on the outer part of the leaf and is moving inward. It looks a lot like a sulfur issue.. Perhaps a lockout..

I'd like to hear more about the use of Cal mag for an iron issue. That may have caused a lock out. Aslo, no ph levels were mentioned in your description so that could be a culprit as well.

Im not one to kill off plants.. Especially as a new grower. Sure, plant another seed and try again, but keep this one around for a while and learn from it. Try to correct it, see how it responds. Experience is the best teacher. Here are a couple of tools that helped me when I first started learning..

This is for help understanding nutrient lock out. And how too much of one nutrient can lock out others...

This is for help with diagnosing problems and the difference between mobile and immobile nutrients..

This is for help with proper ph levels for maximum nutrient uptake.

 

[Autoscouse90]

I

Imo, it's tough to say for sure what the issue is.. I've kept autos in solo cups until they sex and havent had issues with stunting.. Well, definitely not to this degree. I feel like if there was an issue in the solo cup, it would start at the bottom of the plant. If it was hungry, or needed more root space, it would have started feeding on the cotyledon and lower leaves. And those are perfectly green.. Even dark green. The yellowing is starting with the new growth.. And is starting on the outer part of the leaf and is moving inward. It looks a lot like a sulfur issue.. Perhaps a lockout..

I'd like to hear more about the use of Cal mag for an iron issue. That may have caused a lock out. Aslo, no ph levels were mentioned in your description so that could be a culprit as well.

Im not one to kill off plants.. Especially as a new grower. Sure, plant another seed and try again, but keep this one around for a while and learn from it. Try to correct it, see how it responds. Experience is the best teacher. Here are a couple of tools that helped me when I first started learning..

This is for help understanding nutrient lock out. And how too much of one nutrient can lock out others...
View attachment 1156501

This is for help with diagnosing problems and the difference between mobile and immobile nutrients..
View attachment 1156502

This is for help with proper ph levels for maximum nutrient uptake.
View attachment 1156503

It started growing through an yellow the new growth thats how i thought it was iron deficiancy that why i got calmag as i was told thats good gor iron so as its grown the leafs started to go green this is the second one that has done this an yeah i havnt got a ph measurer so that could also be a problem as im just using tap water

 

[Sleeper143]

I


It started growing through an yellow the new growth thats how i thought it was iron deficiancy that why i got calmag as i was told thats good gor iron so as its grown the leafs started to go green this is the second one that has done this an yeah i havnt got a ph measurer so that could also be a problem as im just using tap water

Given that your called Autoscouse I’m guessing you’re in the U.K. I am too and my tap water ph is about 8.2 which would limit nute uptake of almost everything important. I ph all my watering and feeds to 6.7/6.8 using lemon juice (just the stuff you’d put on pancakes). I’m a newbie, just starting my third grow, but my previous 2 grows went almost perfectly (feel free to check out my grow journals to see how they went). I started using a cheap £15 ph pen from amazon for my first grow, but it would need recalibration almost weekly, so upgraded to an Apera PH20 - it’s been perfect at staying calibrated so far. I just do a random check every couple of weeks to be sure.