Possible Nute Burn?

First time grower......
2 weeks into flower, 150 HPS 2 plants, FFOF/Sunshine #4 50/50 mix & perlite.
12/12 flower
Botanicare Nutes 1/2 strength
Distilled H20
Nute + H20 is 6.5 Ph

Runoff Ph is 4.5, very low.

I just found these spots on a couple fan leaves. I also added a little more soil due to settling about a week ago with ffof. Could it be because of the ffof plus the nutes I added?.
Should I nute every other watering and use distilled h20 ph'd to 6.5 the rest of the time?. I have to water every 3 days, the soil is airy and runoff is good. The pots are 8" round. I hope they are big enough to finish!!! is's the largest i can use in my box.

Thanks

Plants look great. A low Ph will lock up Ca and you can use ph up to fix that. Sometimes Ca and Mg defs are seen at the same time cuz of the ph imbalance but I don't see anything like that on your plant. The little bit of yellowing could be nothing. There are mobile elements in leaves that the plants steal from one leaf and relocate to another leaf. And that might be what you're looking at.
Keep me posted.

I'm think its looking hungry~ How many ppm is the half dose?
That runoff testing I don't think it's as accurate as it could be
With ph and ppm going in is what is more important. How many
runoff ppm's was it? How many going in? I have some two week old
buds too, today I feed'em 800 ppm's!

what strain is that?

I would say calcium

MrGhettoGrower said:

I'm think its looking hungry~ How many ppm is the half dose?
That runoff testing I don't think it's as accurate as it could be
With ph and ppm going in is what is more important. How many
runoff ppm's was it? How many going in? I have some two week old
buds too, today I feed'em 800 ppm's!




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Northern Lights

I dont have a PPM meter so I use the GH ph Kit. I plan on getting a ppm soon.
Here are my nutes, in 1 gal distilled h2o.
Botanicare
10 ml Pro blend bloom 2-3-5
Botanicare chart recommends Pure Blend Soil at 1.5-4-5 should I switch?

5 ml cal mag 2-0-0
5 ml liquid karma .1-.1-.05
I adjust the ph to 6.5

I tend to agree that they look hungry, I used straight h20 for the last 2 waterings, I am being careful not to burn them. I even dilute the solution I have sometimes, but I guess next feeding I will give them the full half, unless you have suggestions. I am keeping it low because of the small containers, does that make a difference?