Help! NL and Master Kush budding in Peatmoss, leaves dying!

Hello fellow grower community!

This is my second grow and I had similar problems last time...I think it's the peatmoss I'm growing in.
It's store bought organic indoor plant mix and it says that it's a mixture of sphagnum peatmoss and compost.
There are nutrients in the mix and last time I grew in it, I thought that I had nute burnt it so I layed off the biobizz
bloom and topmax and just let the plants ride it out until harvest. They made it by the way.
I have since added an extra 600W LED to go along with a 300W LED with bloom/veg spectrum.
I used biobizz rootjuice during the veg and it worked great, I have a heater tucked in the corner keeping the temp at around 65 to 80F during the day and night but this time around, I haven't used any biobizz bloom or topmax OR grow. I water the plants and checked the run off today and the NL came out at 6.5 and the Master Kush at 6.8.
I thought it might be acidity with the peat moss so I had added half a coffee mug of hard woodash to both plants
a few days prior.
Since then, things have been getting worse.
Here are some pics and I would love some help from anyone out there.
I'm thinking it might be LACK of nutes this time...but since I just watered it a lot I won't be able to add nutes right away if that's the case....right?
Thanks for any responses!

The master kush is the healthier and bushier looking plant less advanced in it's flowering stage.
The NL is the one with the most die off and more stretch as well.

Too much water????

Wood ash works best if the soil pH level is somewhat acidic, below6.5. Wood ash is high in calcium content, with the effect of raising soil pH. When wood ash is used at pH levels above 6.5, interference with plant growth may occur as the alkalinity level of the soil increases. (quick google search)

You mentioned your pH coming out...but what is it going in?

If possible I would do a serious flush, like 3x the volume of your pot, so if it's 2 gallons pour thru 6 gallon of water.
Your soil is evidently fucked, so basically you want to start over.
Once you have flushed feed normally at around 1200 ppm.
You should cut off the dead leaves, their useless now and are a detriment.
Never use peat as a primary medium (too acidic), next grow make it like 50% soil, 25% Perlite and the rest you can use peat if you really want to use it (don't)
Oh, one more thing, lose the heater, it's not needed and just cost's money to run
Good luck

Jimdamick said:

Oh, one more thing, lose the heater, it's not needed and just cost's money to run
Good luck

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Careful there. Depends where you live. My heater is set at 15c (60f). Didn't bother with my last winter crop and it seriously messed it up until I heated it up, and then it never full recovered. Heating to 80f is unnecessary, agreed.

Dodgey99 said:

Careful there. Depends where you live. My heater is set at 15c (60f). Didn't bother with my last winter crop and it seriously messed it up until I heated it up, and then it never full recovered. Heating to 80f is unnecessary, agreed.

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I'm just thinking ambient room temp.
Never used a heater and my room drops to sometimes 62 in the winter.(in a unheated basement)
I always had to worry about too much heat, not lack of it

The water going in is 6.5. We got good water here!

Jimdamick said:

I'm just thinking ambient room temp.
Never used a heater and my room drops to sometimes 62 in the winter.(in a unheated basement)
I always had to worry about too much heat, not lack of it

Click to expand...

We've been having a nice spring but temps can sometimes drop to 3C and the tent is in an insulated and unheated attic...
I keep the heater at 19C and keep a right above it to help circulate the heat...but I don't really have the option of getting rid of it...yet!
Once it starts to warm up, the next problem will be hot summers and keeping things cool. (got LEDs running but it still gets hot as hell up there)
I will try flushing in a few days, I just ran a bunch of water through it. The PH came out good though so I didn't think that could be the problem.
I wanted to try using some nutes cause I think the stems on the fan leaves are pretty purplish, isn't that a sign of lack of potassium or something?
I will remove the dying leaves though if they are useless!

fruitface said:

I think the stems on the fan leaves are pretty purplish, isn't that a sign of lack of potassium or something?

Click to expand...

No, it is entirely based on strain. Some strains are purple from the beginning, do def required.

The pics look like over watering. You have to let the soil dry out quite a bit before you water again.

So I let it dry out, started with biobizz topmax and biobloom and root juice and added 4 ml of each in a 11L watering can and now feed both plants every six days.
It gets down in the sixties in my tent at night and up in the low 90s during the day! But the flowering seems to be chugging along and hopefully, full harvest in 3 weeks. Thanks for all your help!
It seems like everytime I grow in peat, I have these panic moments and the rollitup community helps me troubleshoot.
Peace! and pics to come
PS
I defoliated and got rid of those dead leaves and so far there haven't been anymore really. My humidity was dropping down into the TEENS for awhile there and my plants were drinking up all the water so a little tip, I wet dish towels and bath towels everyday and let them dry out in the tent during the day and do that daily, saves money on a dehumidifier! Humidity rockin' between 35 and 50