Indoor Ocean Forest RunOff at 5.0?? Doesn't seem legit... Please Help!

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Hello all,

I am currently on week 3 of my grow. I am using FFOF and have been using pH adjusted water to 7 until a week ago on my first feed, just big bloom. today I fed them 3/4 tbsp big bloom, 1 tsp grow big, 1 tsp bio root and 1/10th tsp open sesame (they're autos in preflower). I checked my ph before feeding and it was 6.4 so I let it be and didn't adjust. I waited for runoff and checked it with my pen and it read 5.0??? I rechecked with my liquid solution and it read the exact same thing.
The plants are looking great, nothing wrong with them at all. how can my ph be that low if there had never been anything in my bucket under 6.0? I don't think this is right because they are doing so good. Any thoughts or has anyone seen this before?

I am absolutely positive that nothing below 6.0pH has ever gone into the buckets, and I have not seen any negative effects thus far. They look extremely healthy actually! But now I am very worried about this.

Should I be concerned with this? I am beginning to think soil runoff is not a good gauge of your actual soil pH, because according to that logic the pH of the soil would be even lower than 5.0 if I have been watering with 6.5 and getting runoff at 5.0?

They just look too good right now to have a pH that acidic. I was so excited about this grow because everything has been going so well and now this has happened, and I may be at risk of losing everything, and the huge amount of money I have invested in this grow...

Anyways, here are some pictures from today. Please let me know what you guys are thinking about this and any kind of advice and or suggestions would be greatly appreciated!

Please give me a hand guys, I would really appreciate it!

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I am just having a really hard time believing that my pH has been that low the entire time and these girls look that nice and healthy.... I pH everything before and after adding nutes, so I am not sure at all how or why my runoff is reading so low...
I am afraid to adjust anything right now though, because they look extremely healthy.
 
I believe GoAuto has a wicked awesome formula for figuring out soil ph according to run off readings. I'm sure he'll check in soon
 
Rough Calculation Guide:

Here's some good info on ph.....
If your runoff pH is higher than your starting pH, use this equation to determine your soil pH:*
Soil pH = Runoff pH + Difference

If your runoff pH is lower than your starting pH, us this equation:
Soil pH = Runoff pH - Difference.

For example, say your the starting pH of your solution before it goes in is 6.5 and the pH of your runoff is 7.0. The difference is +0.5, so using the above equation:
Soil pH = 7.0 + 0.5*
Soil pH = 7.5

If your starting pH is 6.5 and your runoff is 6.0, your difference is -0.5 and using the above equation:
Soil pH = 6.0 - 0.5
Soil pH = 5.5
 
Hello all,

I am currently on week 3 of my grow. I am using FFOF and have been using pH adjusted water to 7 until a week ago on my first feed, just big bloom. today I fed them 3/4 tbsp big bloom, 1 tsp grow big, 1 tsp bio root and 1/10th tsp open sesame (they're autos in preflower). I checked my ph before feeding and it was 6.4 so I let it be and didn't adjust. I waited for runoff and checked it with my pen and it read 5.0??? I rechecked with my liquid solution and it read the exact same thing.
The plants are looking great, nothing wrong with them at all. how can my ph be that low if there had never been anything in my bucket under 6.0? I don't think this is right because they are doing so good. Any thoughts or has anyone seen this before?

I am absolutely positive that nothing below 6.0pH has ever gone into the buckets, and I have not seen any negative effects thus far. They look extremely healthy actually! But now I am very worried about this.

Should I be concerned with this? I am beginning to think soil runoff is not a good gauge of your actual soil pH, because according to that logic the pH of the soil would be even lower than 5.0 if I have been watering with 6.5 and getting runoff at 5.0?

They just look too good right now to have a pH that acidic. I was so excited about this grow because everything has been going so well and now this has happened, and I may be at risk of losing everything, and the huge amount of money I have invested in this grow...

Anyways, here are some pictures from today. Please let me know what you guys are thinking about this and any kind of advice and or suggestions would be greatly appreciated!

Please give me a hand guys, I would really appreciate it!

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To be completely honest, your girls look stunning...
 
I am just having a really hard time believing that my pH has been that low the entire time and these girls look that nice and healthy.... I pH everything before and after adding nutes, so I am not sure at all how or why my runoff is reading so low...
I am afraid to adjust anything right now though, because they look extremely healthy.

your are correct, don't get crazy now.
 
I am using an Oakton ph2 meter, calibrated with 7.0 and 4.01 solution. I then verified pH with a liquid dropper type tester from General Hydroponics, and they were both giving me a 5.0 reading.

Thank you for the compliment, I am hoping that they stay that way. Which is also why I am puzzled, because the pH can not be too low or they would not look as good as they did. I have had a plant or two with pH problems before, and these are not showing any signs similar to one of those.
 
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