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Does someone know why leafs got this spots ? Maybe it is to hot or light is 2 strong?? Before 3 days i put co2 bag in grow tent is it maybe 2 much co2 ??? Pls help
 

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I have this and i give it every wathering.. is it possible that i overwathered the plant
 

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Poisonfrog said:
I have this and i give it every wathering.. is it possible that i overwathered the plant
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That is possibly why you are having issues. Too much calcium can block other elements. Your water might already have enough calcium already. Ny water has no calcium at all and I only give it when I put them in their final pot and at the start of flowering and then every other week. Do you know the PPM of your water?
 
I dont know ppm of my wather.. hmmm should i just wather it witouth nutrients... or ? Im panicking a little bit at the moment...
 
I would just give it PH’ed water till you get an answer. Water can’t hurt the problem only if you are over watering. No more unicorn sweat or pixie dust. Will only complicate.
 
I bought biobizz all mix soil.. i dont understand cuz i always wather with calmag from biobizz... and plant needs more calmag !?!?!
 
You might want to look in “The Cannabis Encyclopedia” by Jorge Cervantes. Really good comprehensive A to Z for growing. A lot of good information that can only enhance your skills.
 
Poisonfrog said:
I dont know ppm of my wather.. hmmm should i just wather it witouth nutrients... or ? Im panicking a little bit at the moment...
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Don't panic.

Whilst the plant needs calcium, too much calcium can block the other elements. I used to have calcium problems because my water has no calcium at all. I only discovered this after I bought a cheap EC pen from Amazon, my water has a PPM of 23, which is stupid low. I spoke to my water company and their analysis of my local water described the calcium content of my water as nil. I give Calmag once when I pot them up. Once after flowering has begun and then every other week until a couple of weeks before harvest.

Biobizz are in the business of selling fertiliser products, they don't know or care how much calcium is already in your water, they just tell you to add it. If it causes a problem they can sell you another product to fix the problem. To me it looks like you leaves are starting to fade, which to me suggests a lack of nitrogen, which could be caused by too much calcium. I'd stop giving calmag and see if things improve.

Is this your first grow? I used to grow years ago and then stopped. I started again during covid. It has taken me a couple of years to get things dialled in, the learning curve is massive. Recently my regular brand of soil has been discontinued. I have basically started from scratch again. I was using a single bottle feed, in my new soil that wasn't working so well. So I went back to using Old Timers, very similar to BioBizz, I followed their schedule and immediately got nitrogen toxicity.
 
speedwell68 said:
Don't panic.

Whilst the plant needs calcium, too much calcium can block the other elements. I used to have calcium problems because my water has no calcium at all. I only discovered this after I bought a cheap EC pen from Amazon, my water has a PPM of 23, which is stupid low. I spoke to my water company and their analysis of my local water described the calcium content of my water as nil. I give Calmag once when I pot them up. Once after flowering has begun and then every other week until a couple of weeks before harvest.

Biobizz are in the business of selling fertiliser products, they don't know or care how much calcium is already in your water, they just tell you to add it. If it causes a problem they can sell you another product to fix the problem. To me it looks like you leaves are starting to fade, which to me suggests a lack of nitrogen, which could be caused by too much calcium. I'd stop giving calmag and see if things improve.

Is this your first grow? I used to grow years ago and then stopped. I started again during covid. It has taken me a couple of years to get things dialled in, the learning curve is massive. Recently my regular brand of soil has been discontinued. I have basically started from scratch again. I was using a single bottle feed, in my new soil that wasn't working so well. So I went back to using Old Timers, very similar to BioBizz, I followed their schedule and immediately got nitrogen toxicity.
Click to expand...
You are right they just want you to keep buying that bottled shit to get your money. Keeping it simple makes fixing problems much easier, less to decipher for a proper right fix the first time.
 
speedwell68 said:
Don't panic.

Whilst the plant needs calcium, too much calcium can block the other elements. I used to have calcium problems because my water has no calcium at all. I only discovered this after I bought a cheap EC pen from Amazon, my water has a PPM of 23, which is stupid low. I spoke to my water company and their analysis of my local water described the calcium content of my water as nil. I give Calmag once when I pot them up. Once after flowering has begun and then every other week until a couple of weeks before harvest.

Biobizz are in the business of selling fertiliser products, they don't know or care how much calcium is already in your water, they just tell you to add it. If it causes a problem they can sell you another product to fix the problem. To me it looks like you leaves are starting to fade, which to me suggests a lack of nitrogen, which could be caused by too much calcium. I'd stop giving calmag and see if things improve.

Is this your first grow? I used to grow years ago and then stopped. I started again during covid. It has taken me a couple of years to get things dialled in, the learning curve is massive. Recently my regular brand of soil has been discontinued. I have basically started from scratch again. I was using a single bottle feed, in my new soil that wasn't working so well. So I went back to using Old Timers, very similar to BioBizz, I followed their schedule and immediately got nitrogen toxicity.
Click to expand...
Tnx for a very big reply, yes i blindly listen to description to always add call mag when im feeding them, i will not use it and i will see what happens im gonna buy tomorow ec pen, tnx for taking time to reply to me and sry if my english is not 100 percent correct this is my first grow from start in growbox..
 
And i dont know can i cut of some fan leafs because they are too big and are
 

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Also LST is the best for autos till you get the hang of it. Less chance of stressing the plants they are not photoperiod.
 
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