Yellow and rust colored spots

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Chief2788

Member
I’ll be honest that I haven’t really checked the ec as i didn’t have any problems with my 1st hydro grow but I’m using distilled water and changing weekly using fox farm hydro schedule. First week I did about half recommended strength with grow big and big bloom, then I saw she wasn’t getting enough nutrients and may have over corrected using full strength with the grow big, big bloom, kangaroo roots and microbe brew. Then I saw what I thought was a little burn so in my water change last night I put about 3/4 strength recommended for grow big, big bloom and microbe brew.
I had also flushed yesterday with sledgehammer for an hour before I changed out the water and nutrients.
 
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Chief2788

Member
So I added close to one tablespoon of cal mag for 3 gallons of water and following the week 4 regimen of fox farm hydro that includes big bloom, grow big, kangaroots, micro brew and open sesame and nothing seems to help whatever deficiency this is. I also have been adding about one tablespoon of 3% h2o2 per weekly feeding to keep root rot etc in check.
I got some hydro guard and was thinking of abstaining on the h2o2 and trying that. If anyone could look at the pictures I have attached if what it looks like now I would greatly appreciate it. My plant is still growing at a normal rate but I really want to solve this puzzle.
 

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Chief2788

Member
Mr. Bakerton said:
Do you know the PH of the water?
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No I haven’t checked if. I didn’t have any problems with my last grow using distilled water so didn’t think it was an issue.
about 3 weeks ago I did a flush with sledgehammer an hour before I changed the water. I clean the reservoir and everything completely every week before adding the water and mixin The nutrients into it one by one stirring in between each product
 
jondamon

jondamon

Well-Known Member
Chief2788 said:
Ok it was 5.31
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Bit low that is dude.

I would try to keep it between 5.5-6.5 with the perfect pH swing being 5.8-6.2.

if when you test the solution it’s between the “perfect” swing scope then don’t worry about adjusting it.

test once per day and correct once per day if needed.

Check your EC/ppm as you can track how well your plant is feeding by monitoring increases and decreases in your nutrient strength as the plant feeds.
 
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Chief2788

Member
Thank you all for the help. I have some ph up and down so I’ll make sure at the water change it is in the awesome range of ph. Ill admit I’ve been a little confused on the ppm readings but I’ll study it some more and see if I can get that part of my grow more knowledgeable
 
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rmax

Well-Known Member
I would raise the light 12 more inches. 24" min, Let it ride for a week. Your tent looks bright and your plants aren't huge yet. What's to lose?
Chief2788 said:
Yes led. I have 2 spiderfarmer lf 1000z it is running about 26-28 c.
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Is that the Power Draw：100w ?
 
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