Calcium , fungal or ph

Growing in 1.2 x 1.2 x 2 tent , have a dimmable 600 watt light and the appropriate rvk fan I wanted to show people some pictures of a leaf issue ime having that I feel I have narrowed down to three things, calcium , fungus and incorrect ph , Ime using super soil that I made myself with b and q compost , every ten litres of compost I have added 2 tablespoons of fish blood and bone , 4 tablespoons of Epsom salts , 2 teaspoons of super phosphate , 2 teaspoons sulfate of potash and 2 teaspoons of ecothrive charge with two teaspoons of great white shark added to encourage mychorizae and trichoderma into the soil. I have included some pictures to see if anyone is familiar with this issue if I have posted it in the wrong place my apologies in advanced, my computer skills are a tad bit poor.

Have a few more leaf pictures here also I have no ph pen so will need to save money to get one , I know I know it really leaves me in the dark but hey i'm really really poor it took me a year just to scrape the doe for a tent and equipment together. I think one of the most helpful things for me has been uploading the pictures and looking back at them its allowed me to notice things better than say when i'm hunched in the tent trying to make an assessment under bright lights , I think i might turn this into a half journal and post pics following the progression of the disease maybe as it progresses i or anyone else who sees it may be able to contribute or at least take information away to make sure they don't make the same mistakes that i have potentially made , Every day i will upload pictures and see how it goes and at the weekend or during the week i will go borrow some money and grab a PH pen or soil testing version i will measure the soil and the runoff , also i will attempt to purchase a moisture metre and a light metre that way even though not perfect i can start to put some mathematical values to things to allow me/us to solve this problem along with getting an infrared thermometer to measure leaf temperature that way i can do all the relevant VPD readings.

Also i have an old microscope that plugs into the pc i wander if i get some dye if i can take a piece of these leaves and get them under the scope , surely if there fungal we should distinctively see it right ? (i'm thinking we will see some fruiting bodies or some hyphae or something of that mycological nature.

Overwatering - I have looked at a few posts where some people have suggested that as well as the classic symptoms of over watering.

Cultivars - THE ONE ON THE LEFT IS A OG#18 and the one on the right is a SHARKSBREATH up until now you could tell the og#18 was finding the soil slightly hot but the sharksbreath has been absolutely loving it originally there was 5 plants in there but i threw the others out and opted to do some training for ease and convenience as i have no space for a veg, mother and clone room.

Whats baffled me - A couple of years ago i grew a plant in the same soil mix in the conservatory with no fan no light and no temp control it got boiling in the day and cold on the night but honestly it was the healthiest plant i had ever seen no leaf blemishes no problems or anything it was absolutely stunning for the life of me i will never understand how it happened when i was regularly reading temps in the 40oc region , i really was hoping it would thrive indoors with some of the added extras and temperature being regularly controlled.

I would start at testing your PH if your Ph is too high then the plant is not taking up the nutrients it requires.

Cheers skoal ime gunna make it a priority at the weekend to grab the ph meter Ile be sure to post a picture everyday in the mean time to track it's progression hopefully I can find away to treat these plants once the ph has been assessed.

It's hard to tell under the yellow light, but it appears you're short on Ca. Any reason why you put more Epson Salt (Mg) into your mix than any other nutrient? This may perhaps be part of your problem...too much causes other issues, like what you're experiencing. Your bone meal should add Ca, but it's a slow process due to it needing to break down. If you're running super soil, I would guess you just water and go? I would check your water pH just to be sure. Just some thoughts...

There was no real reason than before I added the Epsom salts to stuff outdoors they use to yellow very early and I would have no luck with them so it's just been an amount I've added to the soil for various fruits and vegetables aswell and I've seen to had better success , and yes the tap water here is abit hard tbf , I usually de chlorinate it and just water and the soil supplies the nutrients , yes I also agree it's showing calcium symptoms Ile definitely check the ph of the water aswell as soon as the opportunity arises , Ile be sure to throw a few more pics up tonight aswell as it seems like the one should definitely survive but not so sure about the other , definitely noticed sativas are more sensitive to the supersoil than my easier to grow sharksbreath which appears to be heavily indica

The sharks breath seems to be fairing well in the super soil mix.

This one is the og#18 I think it's more sativa and it is not recovering so fast however I think some of the growth on it has greened up a little bit

This is the worst looking branch on the og#18, if the og#18 doesent recover after I have got the ph testing kits for the soil and water then I really think it is the hot super soil affecting the ph and absorption of calcium luckily one of them still likes me lol

The sharksbreath seems to helping the super soil anyone got any ideas out there for supplemental lighting maybe some side lighting or something