This is my first inside grow. I am growing in a 4x4 tent. Everything is AC Infinity. I do have the 800 watts spiderfarmer led light. Also using CO2. My light is only on setting five. I tried two different strains I have two Amherst diesel and two Girl scout extreme. I have struggled getting my pH down. It is 8.7 and 8.9 in some places. I believe that’s what’s going on with my leaves. I am ending week 4 of flower. Is there anything I can do to lower my pH now or is it too late? The diesel seems to be handling it a little better. The girl scout is unhappy. Any help would be greatly appreciated.
5 Likes
Well some pictures will really help. (we all really like those 
)
Week 4 since flip?
Whats your soil composed of?
There are a few ways to address high pH and if you are 4 weeks from flip you may end up with a nice result yet.
8 Likes
Sorry about that. I’m trying to get the pictures sent.
I’m growing in Fox farm. With some perlite and worm casings added.
6 Likes
Also a lesson learned was a sativa and an indica. Keeping the canopy good through stretch was difficult for me.
8 Likes
What do you use for water going in? What for nutes?
Ppms and pH in numbers as well as coming out numbers?
That plus the pictures will tell us more. Definitely looks correctible. Very nice healthy canopy despite the one plant.
As a side note you most likely don’t have to supplement C02. Its really only useful at the ceiling of an optimum growing environment. PAECAM (provided all environmental conditions are met) it can be really useful and boost yield. But even more of a factor is played by getting those environmentals dialed in.
5 Likes
I agree. I haven’t really been able to even push the lights because of the problem with the leaves I think. I have been feeding them advanced nutrients. Part a and part b Bloom. Tarantula, piranha, voodoo juice and bud candy now. Cal mag also. When I feed it has been up to 1100 parts per million at this stage. I have them in 7 gallon bags. I had to veg much longer than I wanted to. I was watering from the bottom. I haven’t tested it coming out yet.
4 Likes
I do have the controller pro Plus. I am able to keep everything fairly close to what it means to be.
5 Likes
If you’ve been bottom watering I can’t advise you to water from the top. Bottom watering salt nutrients will create a buildup layer in the top few inches of soil away from most of the root zone. If you were to top water you’d have to flush a really large amount of water to get rid of that salt layer and avoid frying em.
I’m not familiar with advanced but i think @Lostgirl might be, and hopefully can offer some help.
8 Likes
What are you using to test ph
7 Likes
You can quickly lower soil PH using aluminum sulfate/sulfuric acid, mix one tea spoon per gallon of water.
Be careful with it overuse can harm the roots.
You can also use peat moss (organic) or iron sulfate but these take time to work (bout 2 weeks)
Alternatively, you can use white vinegar or citric acid in your water feed.
Hope this helps, ive had to raise PH this grow from 4.4 and it was a bitch.
Baking soda has saved me though, will start adding dolomite lime should it start to drop again.
8 Likes
Good day gentleman. Thank you for the tag @JMBLeaf
Let me say first off 
STOP ADJUSTING YOUR PH
That’s one hell of a grow you got going @Cory2
I spent a little time reading over your post. I see a couple of different problems that need addressed immediately before this entire grow go south quickly.
Starting with the minor stuff. I would discontinue CO2 in this Grow as it’s not necessary for such a small grow and area. Save your money ditch the CO2
Let it be known I have no experience with growing using bottom feeder feeding practices. If I’m not mistaken my buddy @Bentstick utilizes and or has utilized bottom feeding and my shed some light on rectifying your issue.
Let’s jump into the real issues
I see you have 4 plants (photos) going into week 5 of flower grown in Fox farm soil in 7 gallon grow bags and I believe you mentioned Advanced Nutrients Bloom A & B (I’m assuming this is Sensi)
Throughout this post reply you’ll find questions in bold please make sure you answer the questions so I can further assist you properly.
I am unclear on a few different things that you said that needs clarified.
You
I have struggled getting my pH down. It is 8.7 and 8.9 in some places
Can you elaborate?
I’m unclear as to what this means. Are you trying to get your tap water’s pH lower? Is this a runoff pH?
You
I was watering from the bottom.
Does this mean you’re no longer feeding from the bottom?
You
I haven’t tested it coming out yet.
Personally I believe that would be a good start 
You
When I feed it has been up to 1100 parts per million at this stage.
1100 PPM intake feed seems excessive 
is this full strength from the feed chart?
So it looks to me your biggest issue is your struggling with ph adjustment and things are starting to turn negative.
My personal assessment
Unfortunately, you seem to be counter reacting the technology of the pH perfect system developed by Advanced Nutrients by trying to adjust your ph and this can cause major issues.
Without going into a big scientific definition let me explain that pH perfect technology by Advanced Nutrients is simply a chelated fertilizer
A Chelated fertilizer is a type of fertilizer where micronutrients are bound to organic molecules (chelators or ligands) to enhance their availability and uptake by plants without having to adjust the pH especially in challenging soil conditions like Happy frog that is already known for it’s struggles with ph control.
Okay so what does that mean?
This means the chelation and/or pH perfect eliminates your need to adjust the pH as nutrient uptake (due to the chelation) can take place between pH 4.0 and 9.0 and everything in between. (Hence the name pH perfect)
In short, you’re creating the issue by attempting to adjust the pH of your feed . It’s manipulating the chelation process and sending your pH into wack out zone in your soil.
NEVER UNDER ANY CIRCUMSTANCES EVER PH ADJUST ADVANCED NUTRIENTS
How do I fix it?
This is where you’re going to kind of lose me as I’m not experienced in bottom feeding as simple as it may sound.
I guess waiting for your answer to are you still bottom feeding or have you switched to top feeding is going to determine how to proceed.
Let me explain what needs to happen
The pH perfect is slightly compromised in your soil by you fighting the process with adjusting your pH.
I believe this can be rectified by simply stop adjusting your pH
Note
Not knowing any type of runoff numbers for PPM or PH doesn’t give me much to work with. I already know you’re potentially overfeeding your plant utilizing an intake of 1100 PPM going in and you adjusting your pH is manipulating the pH perfect system. (Not good at all)
Once you answer the questions I can offer some simple solutions to fixing
BTW, what is the pH of your tap water? I’m assuming you’re using tap water to mix your nutrients correct?
15 Likes
@Bentstick when you were bottom feeding did you ever flush? If so when? I’m assuming if flushing became necessary it would take one hell of a lot of water to flush a 7 gallon pot.
11 Likes
I love to read your synapses and the way you verbally encapsulate your observations. Always clear, concise information.
12 Likes
No flushing, have grown 6 plants using autopots so far and have never flushed one yet, 2 grown with th AN line, 2 with Jacks, and 2 with Mega Crop.
9 Likes
I didn’t think you had to flush them. But I did remember that you used them. Thank you for your feedback!
8 Likes
Thank you very much brother. That’s truly kind of you. I’m blushing 
9 Likes
@Cory2 welcome aboard my friend happy growing your in good hands
11 Likes
It took me over 20 gals to flush a 10 gal grow bag
7 Likes
Great post @Lostgirl Ive never heard it explained that well.
7 Likes