Leaf problems.. please help

I have a few marks on my leaves this is on 1 plant. I gave them there first feeding yesterday but the yellow marks were already on the leaves. 20170802_210054|374x500

@GROWNEWBIE
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Strain; Type, Bag seed, ILGM… name of strain:

Age from Sprout:

Soil in pots, Hydroponic, or Coco / Brand and type of Soil & Size of Pots:

How often do you water and how do you determine when to do so?

PH of water and runoff or solution in reservoir:

What is strength of nutrient mix? EC, or TDS:

Indoor or Outdoor:

Light system, size and height from plants:

Temps; Day, Night:

Humidity; Day, Night:

Ventilation system; Yes, No, Size:

AC, Humidifier, De-humidifier:

Co2; Yes, No:

Add anything else you feel would help us give you a most informed answer. Feel free to elaborate, but short, to the point questions and facts will help us help you.

Strain; Type, Bag seed, ILGM… name of strain:
White widow skunk

Age from Sprout:
Almost a month old

Soil in pots, Hydroponic, or Coco / Brand and type of Soil & Size of Pots: FFOF soil 5 gallon pots

How often do you water and how do you determine when to do so? Around every 3 days

PH of water and runoff or solution in reservoir: PH in water is 6.4 and the run off is about 6.5

What is strength of nutrient mix? EC, or TDS: I use 1 TBS Big bloom and grow big

Indoor or Outdoor: indoor

Light system, size and height from plants: 700w viparspectra dimmibale light

Temps; Day, Night: 80/day 65/night

Humidity; Day, Night: 67/day 50/night

Ventilation system; Yes, No, Size: yes 6" inline and 6" booster

AC, Humidifier, De-humidifier:
Co2; Yes, No: no

Have you checked your runoff PPM?
How long have they been in the 5 gallon pots with the FFOF?

I did before I started using nutrients and it was around 750-800 they been in 5 gallon pots for about 2 weeks

These are all on 1 plant and almost on 1 side of it

FYI
1 tbsp is too much for big bloom. Look at their feeding chart

Sorry TSP not Tbs lol

Still the ratio is incorrect

It is not a 1:1 ratio between bigbloom and grow big

You are giving the same ratio of both nutes and that is incorrect

Bigbloom is always higher in ratio to the others. Look at the feeding chart ff has

Started on week four 3tsp big bloom and grow big

That’s the only week out of 12 that has equal ratios all other weeks it’s higher bigbloom than grow big