I seem to be having issues with white tips and darkening leaves.

[m8ty]

Can you test the run off to see how many ppm you get? I suspect nutrient burning the roots ..

 

[WickedMichelle]

Can you test the run off to see how many ppm you get? I suspect nutrient burning the roots ..

What is ppm? I do not have any meters atm. I had a soil meter that was total crap and sent it back. Going to get a ph meter today and can try to get something for ppm but don't know what that is.

 

[m8ty]

What is ppm? I do not have any meters atm. I had a soil meter that was total crap and sent it back. Going to get a ph meter today and can try to get something for ppm but don't know what that is.

 

[m8ty]

These are very popular...

 

[Budtirement]

What is ppm? I do not have any meters atm. I had a soil meter that was total crap and sent it back. Going to get a ph meter today and can try to get something for ppm but don't know what that is.

In the phrase, parts per million, what are the parts that you’re counting? The parts are tiny bits of metals, ions, minerals and synthetic chemicals that are dissolved in the water. These are called contaminants for the purposes of testing because they are things in the water that are making the water not absolutely pure.

If you measure out and add nutrients to your water you can pretty much instantly test it to see how how many parts of nutrients per parts of water, that you just added. So if your calculating or measuring skills are slightly less than optimal you can check yourself, and importantly, you can keep a record of what is happening.

If you go online to your water company they will have the results for their yearly testing of your tap water posted. This will include average ppm, pH and the type of disinfectant they use, as well as a host of other information about your tap water that will make you dizzy and just a little bit worried. The pH for my local water is 7.8, so that’s much higher than the 6.5 that we want to grow cannabis in soil. That's why it's good to check just so you know what you're dealing with.

Many American cities are now using chloramine as their disinfectant. Chloramine does not evaporate out of standing water, (that’s why they’re using it), but can be removed with tablets found at fish aquarium stores, because chloramine kills fish. If your local water is disinfected with chlorine than you can fill a bucket with tap water and leave it standing out for 24 hours and the chlorine will evaporate out.

I will tell you that I water my indoor garden with rainwater that I collect. My outdoor garden, if I need to water it, gets city water with 7.8 pH and chloramine and I haven't actually seen any problems in my plants from that.

Why do you care if chlorine or chloramine are in the water you use for your cannabis plants? Well because these are disinfectants that are really good at killing microbes, so if you use it in your soil the likelihood of beneficial microbes living in your soil is reduced and there is evidence that a healthy microbe community in the soil is highly beneficial for cannabis roots to help extract nutrients from soil.

 

[WickedMichelle]

These are very popular...

Thanks.... I was looking at those on amazon. Didn't know if they were any good. None of them seem to get good reviews.

 

[WickedMichelle]

If you go online to your water company they will have the results for their yearly testing of your tap water posted.

Average pH 9.06. No wonder the water tastes so bad here, look at all this.

 

[Eledin]

I like information and appreciate the time you are taking to type it Are you using AN also? Are you in soil?

Im using the organic AN line but not all of it. I use Iguana Juice, Tasty Terpenes, Bud Candy and Big Bud but after the 3rd week of flower I mix Iguana Bloom with Alghemp F from Trabe 50/50 to lower nitrogen intake. As for supplements, like enzymes or silica or micronutrient as veg-flower booster I use other brands aswell, but all organic. I use mostly AN and Trabe, and then Mycoterra for the ammendments.
Yes, I grow in soil. I buy a light mix (or also called seed mix due to its low EC to not burn seedlings) and then ammend it myself. Peat mixed with coco, perlite, arlite, vermiculite, biochar and organic ammendments like kelp meal, neem meal, etc..

 

[Eledin]

Average pH 9.06. No wonder the water tastes so bad here, look at all this.


View attachment 2223945

Well now we know where the high PH comes from. Make sure to let that chlorine evaporate for 1 or 2 days before using the water, it kills your microorganisms from Voodoo Juice like @Budtirement said. If you drink it (I hope not) do the same, or it will kill the good bacteria in your gut. Im not saying it kills them all of course, but they lose population and they have to recover which is not good, and thats every time you water.

 

[Eledin]

In the phrase, parts per million, what are the parts that you’re counting? The parts are tiny bits of metals, ions, minerals and synthetic chemicals that are dissolved in the water. These are called contaminants for the purposes of testing because they are things in the water that are making the water not absolutely pure.

If you measure out and add nutrients to your water you can pretty much instantly test it to see how how many parts of nutrients per parts of water, that you just added. So if your calculating or measuring skills are slightly less than optimal you can check yourself, and importantly, you can keep a record of what is happening.

If you go online to your water company they will have the results for their yearly testing of your tap water posted. This will include average ppm, pH and the type of disinfectant they use, as well as a host of other information about your tap water that will make you dizzy and just a little bit worried. The pH for my local water is 7.8, so that’s much higher than the 6.5 that we want to grow cannabis in soil. That's why it's good to check just so you know what you're dealing with.

Many American cities are now using chloramine as their disinfectant. Chloramine does not evaporate out of standing water, (that’s why they’re using it), but can be removed with tablets found at fish aquarium stores, because chloramine kills fish. If your local water is disinfected with chlorine than you can fill a bucket with tap water and leave it standing out for 24 hours and the chlorine will evaporate out.

I will tell you that I water my indoor garden with rainwater that I collect. My outdoor garden, if I need to water it, gets city water with 7.8 pH and chloramine and I haven't actually seen any problems in my plants from that.

Why do you care if chlorine or chloramine are in the water you use for your cannabis plants? Well because these are disinfectants that are really good at killing microbes, so if you use it in your soil the likelihood of beneficial microbes living in your soil is reduced and there is evidence that a healthy microbe community in the soil is highly beneficial for cannabis roots to help extract nutrients from soil.

Very well explained. If anything Id like to add that chloramine is better for human compsumption (less agressive and stays for longer in the water) and leaves less residue in the soil. It will degrade quicker than chlorine in the soil thats why is not as harmful but it still kills every microorganism it touches. Like I said in my previous post, its not gonna kill all of them but its gonna cause them to lose population every time you water with it. Of course that doesnt mean its gonna cause problems (it could but is not likely), but it will affect the performance of the microorganisms for sure. The fact that a plant is healthy doesnt mean its working at its full potential and some people dont seem to know that (Not talking about you). They think that as long as the plant is not showing any symptom theyre doing everything perfectly and many times is not the case and leads to worse weed even if still good. Doing just OK is not the same as thriving.

 

[Budtirement]

look at all this

On the bright side, there is calcium and magnesium in your water so if you can adjust the pH of that water, (with pH Down), and get your soil in balance, you may not need to worry about adding calmag.

I just want to say that I went through very similar situations for my first 5 grows using liquid nutrients and I faced the same issues and did the same work, calculating, measuring, buying tools, trying to determine if a leaf discoloration was a problem and what to do about it. It was all too much. I wanted out. I've now switched to organic living soil. I don't calculate or measure anything. I don't check any pH or ppm. All I do is set up at the beginning, find clean water, water when she says she's thirsty and put on a layer of amendments once or twice during the grow. Now I look back and I realize that what I was doing was just too anxiety producing. Trying to boost this with that to get the biggest buds and scared if I overdid it. Growing cannabis at home for m'lady should be calming and enjoyable, not a science experiment I'm always worried about. If I can complete two grows a year in my 2x4 tent I have plenty for us and some to give away. And if I do one outside in the summer I'll be neck deep in the stuff. So, well that probably sounded like a pitch but I meant it as a call to freedom. I'll shut up now and go make dinner.

 

[Old.Mike69]

That yellow you see in the leaves in that picture is from the end of flower. When you flush your plants last 1-2 weeks they take the nutrients from the leaves, its a totally different thing. The brown tips its probably from pushing nutes as its the only way to know when they are at maxium dosage, when they show a few burned tips. Could also be light stress if they wanted to push the light to the max. 1200umols is the max that a plant can take and some strains cant take more than 1000umols. If you dont have a method to read how many umols are reaching the plants the manufacturar usually mentions what distance and/or potency you need for each stage. But again, every strain is different, even every seed from the same strain can be quite different. Eat more, eat less, taller, shorter, more light hungry, less light hungry, etc...

Photone App uses your phone to measure light intensity among other things

 

[WickedMichelle]

All I do is set up at the beginning, find clean water, water when she says she's thirsty and put on a layer of amendments once or twice during the grow. Now I look back and I realize that what I was doing was just too anxiety producing. Trying to boost this with that to get the biggest buds and scared if I overdid it.

Mostly concerned about potency and taste. I do not want them to taste like home grown and want to make sure they will do the job. I have a high tolerance. Quantity is 2nd. But a good harvest would be nice.

 

[Budtirement]

But a good harvest would be nice.

This is always true and I wish you success on your path!

 

[Newty]

Try not to take this the wrong way.
I wish you would of took the advice that many of us gave you at the beginning, now we are back to testing ph, ppm, having light intensity to high, using nutes at to high of strength, etc.
Light at 75% and 26" is crazy and will cause your plants to turn lighter because they're burning. Save the higher intensity for flower when the plant needs it! I personally only use deep red supplement in flower, I stay away from to much red in veg because it can cause stretching.
It's your first grow in a long time and all these measurements, testing equipment, etc is going to get you in trouble. Forget the numbers, read the plant! Using a tool/taking measurements is going to do nothing for you if you can't read the plant yourself.
You're being given information that keeps pulling you back and forth between how you're growing and probably stressing things by doing so.
Some of the most successful growers on here gave you advice plenty of times but you keep changing everything and buying more stuff the moment someone tells you to.
I wish you luck on a good harvest and everything your doing, hope you find a growing style that works for you that keeps you from second guessing and changing everything.

Side note, your plants are going to double or triple in height during the flower stretch. Make sure you flip so when they double or triple in size, you can keep the light at least 24" above the canopy of your plants. If you flip to late and can't raise the height of your light anymore, your tops will get to close to the light at ruin your biggest buds.

Here is some of my buds currently in one of my tents, still early in flower but they're turning into beautiful buds and I use tap water, don't test ph or anything, use nutes at 50% strength, light never over 40% and 30" high in veg.
If you want to see more beautiful plants from someone who keeps things simple, go check the grows @Captspaulding does!

 

[Eledin]

Photone App uses your phone to measure light intensity among other things

Are they reliable? Ive seen them mentioned in the forum before but I also seen people say they dont work well.

 

[Sunin]

Im using the organic AN line but not all of it. I use Iguana Juice, Tasty Terpenes, Bud Candy and Big Bud

I reduced Bud Candy and swapped for Carboload - half on half- bud taste better after. recommend to try

you don't need ppm reader following chart from Advanced (would invest in PH pen if in anything)
with next water you can just control PH and bring it down to 6.5
and PH line will bring PH down always to 6.5. I know as I use one long time and my tap PH is high (water here is even worse than your results) so that means you're making some other mistakes while mixing or what's inside your pot is raising the overall PH
greets

 

[Eledin]

I reduced Bud Candy and swapped for Carboload - half on half- bud taste better after. recommend to try

Will try, thanks for the tip! Carboload is also cheaper so its a win-win if it works.

you don't need ppm reader following chart from Advanced (would invest in PH pen if in anything)
with next water you can just control PH and bring it down to 6.5
and PH line will bring PH down always to 6.5.

Agreed, as I said in a previous post for me its always at 6,5 full dosage aswell unless I add another liquid that is not inside the line which is not her case. Waiting for her to meassure the PH of watered nutes and runoff as suggested so we can know for sure but as I said in a previous post I also suspect it could also be something in the substrate since fox farms can come with non fully composted material and also relies on microorganisms a lot because it has organic ammendments. Thats why I think that your idea of adding mycorrizae is good, ideally you should have bacteria and fungi not just one. Also letting the chlorine evaporate, which I suspect she wasnt doing. (Correct me if Im wrong @WickedMichelle )

 

[WickedMichelle]

Also letting the chlorine evaporate, which I suspect she wasnt doing. (Correct me if Im wrong @WickedMichelle )

I am correcting you. I do let the water sit for a couple of days before adding nutrients.

I wish you would of took the advice that many of us gave you at the beginning, now we are back to testing ph, ppm, having light intensity to high, using nutes at to high of strength, etc.

I have gotten this far listening to the advice given to me here.
I have constantly been listening to the advice given here.
I have almost killed my seedlings listening to the advice given here, I have saved my seedlings from the advice given here.
Maybe I do not follow the correct advice all the time, but everything I have done is from advice given here.

Also keep in mind that some do not have the same growing environment. Different equipment, soil, nutrients.... etc. And so many different opinions.... so I would say I am doing pretty good at sorting things out and getting to where I am now.

Some of the most successful growers on here gave you advice plenty of times but you keep changing everything and buying more stuff the moment someone tells you to.

So I should not get a pH pen? Or a dehumidifier? The cal/mag was the only addition that seems to be a mistake. I guess I am not following.

I am not looking at anything but heat and humidity, the two things I cannot get a grip on. Dehumidifier is total crap and going back today. I will get a pH pen but that will have to wait till payday. Sure, I am not too sure about the chemicals.... but so far they seem to be ok, except for the cal/mag. I think that was a mistake.

Side note, your plants are going to double or triple in height during the flower stretch. Make sure you flip so when they double or triple in size, you can keep the light at least 24" above the canopy of your plants.

I should have flipped a couple of weeks ago. I have about 27" from light and light is at max height. Putting them into flower today. I took out the cal/mag from last feeding so fingers crossed that takes care of the white tips. I may have to remove the fan to get the light higher. I do not know where I will put it though.

read the plant! Using a tool/taking measurements is going to do nothing for you if you can't read the plant yourself.

Like everything in life, this is something that is learned. Reading the plant is like picking up a book written in Chinese when you only read English. You can see the letters but do not understand what they mean. Just like I have learned in this post that these white tips are from the added nutrients. I do not believe it was the light that caused it. I seriously think the addition of the cal/mag was a mistake, at least in a full dose.

Photone App uses your phone to measure light intensity among other things

I downloaded that. If correct, I am running 13000 LUX at 65% light on average, 27" above plants. Little weaker around the edges of the tent.

 

[AZreefer]

Mostly concerned about potency and taste. I do not want them to taste like home grown and want to make sure they will do the job. I have a high tolerance. Quantity is 2nd. But a good harvest would be nice.

If taste is your top concern go organic next grow. To be honestbit will really simplify things for you also. I have 7 healthy plants for my organic grow and all i have done for 2 months is water. And only a little water, no run off. There are tons of organic methods people here can get you a recipe and method for but it IS supposed to produce the very best in flavor. That sold me on trying.