Help please: brown spots on leaves

[TripleCchronic]

Come on how could you not help me, I even took the time to make the question rhyme. Over the last two days little brown spots have been appearing on my leaves and spreading. I recently did the reservoir change and up my nutrient strength. I'm wondering if it's possible that my humidifier is causing small lense effect Burns. Or is this media nutrient deficiency? Some kind of disease? I don't know but I want to know and I want to know how to fix it. Thank you my Growmies

 

[Rosti]

People will probably want to know more information to help you out with this question. Like what nutrients? tap water? DWC? How much and what have you fed it? ... it’s just best to give everyone as much info as possible so you can get the best help possible. To me it doesn’t look bad, it could just be water splashes and the lights burning the leaves like a magnifying glass. But that’s just a guess, and prolly a bad one. Lol someone will jump in here

 

[pr3tti]

There might be a problem with your roots from the looks of the pictures. Also is there a fan in your setup blowing over the canopy?

 

[TripleCchronic]

I'm currently using general hydroponics Flora Trio. I did a reservoir things on the 21st of February and added 7.5 ml per gallon of micro 10 ml per gallon of grow 2.5 ml is a gallon of Bloom 7.5 ml per gallon B-52 and 9.5 ml per gallon of Cal mend. I also have been adding 1/2 tsp of NPK RAW microbes. As for the roots there has been some nutrient build up but if been gently washing it off with resevoir water and a spray bottle. I had a fan but it died yesterday...rip vivosun.. pretty shitty it only lasted a month

 

[Listersmeghead]

If your roots are ok and ph is correct,then sometimes hydro plants lack a bit of calcium, this can show up as little brown marks.Also if you spray your leafs, it can leave marks.
Another thing that can make marks like that are insects. Check your leafs closely and underneath.

 

[Southerncough]

Was just thinking calcium or water droplets = light burn.
I also agree with scoping the leaves top and bottom as close as possible just to be sure nothing tiny is munching on them

 

[TripleCchronic]

I don't see any bugs. As for the roots and the nutrient build up you can see in the picture below. The first picture is before I clean them. And the second picture is after I clean them. I also included some pictures of the underside of the leaf

 

[Listersmeghead]

I don't see any bugs. As for the roots and the nutrient build up you can see in the picture below. The first picture is before I clean them. And the second picture is after I clean them. I also included some pictures of the underside of the leaf

Those roots look dark to me. I know some nutes stain the roots.
When you wash them off do you wash back into the res bucket? How long until it returns to that dark?

 

[TripleCchronic]

I had been washing it back into the reservoir. However I did a reservoir change today and cleanes them off i to another bucket. I also didnt include the NPK RAW microbes and used 75% strength for the B-52 and Cal Mend. Also cleaned the entire tent hoses and power cored, basically every surface in the tent with enzyme cleaner. Its called enzyme complete. Hoping this helps. Someone also suggested it could be the plant us pH sensitive so I will try to keep pH really consistent over the next week.

 

[hygro]

That's a strong dose of nutes. Are you going directly from GH's hydroponic feeding schedule by any chance? They recommend really overly strong levels for growing weed I think.
The comfort zone brand clip fans work good, dont oscillate, but 2 for 20 bucks is a deal.

 

[TripleCchronic]

 

[TripleCchronic]

I recently started the GHE reserculating schedule. 10ml/g Micro 10ml/g Gro 2.5 ml/g Bloom. I also was adding 9.5 ml/g Cal Mend 7ml/g B-52 but my last res change 3 days ago I only added base nuts to try and figure out this issue. Spots still appearing

 

[pr3tti]

What's your pH? I have the same thing in Week 4 veg plant in DWC with purpling stems. I tried flushing but problem got worse so I upp'ed ppm's instead. I always had my pH set at 6.1 pH. Today I added Potassium Silicate AND I finally dropped it to 5.5 pH and it went to 5.6 pH fast and consumed ppm's 600 ppm to 500 ppm in like 6 hours. First time I've seen that whereas before it was barely dropping ppm, so try lowering pH and/or adding Potassium Silicate (i'm quite sure it was pH drop that did the trick tho). I haven't seen any signs of brown spots recovering but no more new brown spots so far.

 

[SarahJane211]

Your leaves are very shiny .......... isn't that a sign of too much nutrient?

 

[TripleCchronic]

No idea. This is my first grow ever.

 

[TripleCchronic]

No idea. This is my first grow ever.

No idea. This is my first ever grow. Any advice is appreciated.

 

[Listersmeghead]

The new growth looks good, if your ph is good (around 5.9) and the roots are good, then just carry on doing what you were doing.like I say the new growth looks good.

No idea. This is my first ever grow. Any advice is appreciated.