ID source of issue?

[Soutie]

Hi,

I got this little girl's seeds from someone I can no longer contact.

She is very much an indica but I can't remember what her parents were.

Anyway, as can be seen she is in serious trouble, I have not had time till now to actually do anything about it.

Is it too late to do something?

Details below if needed/wanted for diagnosis:

Currently summer here and not all that much more I can do about heat. Average lights on temp is between 27 to 31'c
Average lights off temp (daytime ambient temp) is around 29.
Using an 8" inline fan for ventilation with insulated ducting.

Feeding: GHE, currently in week 7, next feeding will be week 8.
I also add some Epsom salts every 2n'd to 3'rd feeding (up to ppm of around 1400 after all other ingredients added)
PPM is usually between 1000 to 1400
Borehole water (ppm of 92, ph of 7.9 before it gets adjusted).

Growing medium: 50% coco peat, 50% perlite, some dolomite lime.

Nutes average PH: 5.0 to 5.5
Runoff average PH: 6.0 to 6.2

Even if I can't fix her (doubt it as I have another 4 to 6 weeks before supposed harvest) I would like to know for future reference.

Thanks all for putting up with this new level of idiocracy

 

[Soutie]

Just to add to this post.

Humidity is always relatively low due to heat. I will be getting a mister to deal with that shortly.

AC is not an option (no space and to expensive).

C02 is not an option as I need to move the air out of that room at an incredible rate to manage the heat.

 

[TheCleanGame]

---snip---

 

[Soutie]

I am pretty careful with the Epsom, started adding it due to magnesium deficiencies and now days it is really a tiny amount, adds around 100 to 150ppm to 1 gallon water (less than .5g per feeding) but I will stop, I am probably causing some kinda lockout.

I think I actually found the schedule I am using on icmag.

I]It is a soilless medium (50% coco peat and 50% perlite with some dolomite lime to stabilize ph).

Here are 2 clones I took from that same plant. they were put into flowering around 4 December.

She was put in Mid November.

As can be seen they are much happier than she is but are also starting to have issues on lower leaves. I kinda expected that though, think it's normal at their age/stage of growth?

I would really prefer for them to get out of this looking better than she does.

Another 2 of her clones were put into flowering last night...

 

[TheCleanGame]

---snip---

 

[Soutie]

That's the GH nutrient schedule from General Hydroponics, not a grower modified nutrient schedule.

I still advise the same as before as they are indeed overfed.

Keep it Clean!

thanks will do