Browning leaf tip cause?

I’m fairly new to growing and I’m trying to figure out what’s causing the leafs to tur


n brown.
I’ve read that it is usually over or under watering, fertilizer or bugs. I’ve watered them twice in two weeks but I think I made the mistake of giving them fertilizer. I put a tablespoon of miracle grow in a windex size bottle. I rinsed out the soil with water yesterday and I’m hoping that solves it.
I’m thinking it could be the lighting too. I just want to correct what I’m doing wrong. I’ve had a slight problem with gnats but I have them mainly controlled for now but that’s the only pests I’ve had.

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Good lighting definitely is a must when growing cannabis and the tips are from to much nutrients what kind of soil you using and also when or if you will transplant it you could add some perlite to the soil will help with areation in the soil for the roots any other questions give a shout out and if you know some people on here use the @Putridsmell and you can reach that person I’m usually in and out of here I will get back with you as soon as I can happy growing :v:

Did you recently transplant them? New growth of the plant looks good. What kind of soil is your ladies in?

Miracle grow nutrients? I’m not sure about those nutes.

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What medium are the plants in Growmie and I suggest not using miracle grow, look into a cannabis friendly fertilizer like Jacks 321. :love_you_gesture:

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I haven’t transplanted them yet and the soil is fox farm happy frog.

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I wanted to get something different than miracle grow. It’s just what I had on hand and is usually safe with most plants. I’ll look into jacks321. Appreciate the reply and recommendation.

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So you think it’s from too many nutrients? Anything I can do to help them or just not give them anything besides water? I’ll wait another 10-20 days before I transplant them, maybe longer. Just want to make sure they have a good root system.
Any reason to worry about them in the long term? Should they be able to recover in time?

I use happy frog. I feel like maybe there’s two things going on.

They look pretty mature and to me they look ready to be out of happy frog soil and are ready for ocean forest because they look almost underfed looks like the bottom growth is worse than the new growth.

Maybe what happened is they started needing their full on nutes which is what ocean forest will provide, then adding the miracle grow might not of helped it. Just an opinion tho. Hopefully someone else can verify.

They look good though. They can bounce out of that no problem.

The Happy Grog will feed for approximately 4 weeks, water only during this time and check the run off for when it’s time to feed nutrients Growmie :love_you_gesture:

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So you use happy frog for germination and seedlings and transplant into ocean forest?
As far as fertilizing goes, do you get the dry fertilizer and mix it into the soil or is a water soluble fertilizer better to use?

yes use ocean forest for the vegetative stage. if you use ocean forest you wont have to use nutes until after 4 weeks like @OGIncognito said.
Only dry fertilizer I use is Lime to stabilize the ph of my soil keep it from bouncing around. is lime considered a fertilizer. I don’t even know lol.
Otherwise I use advanced nutrients liquid nutes but most people use the Jacks321.
what kind of light are you running?
also is that small one in the back left not get miracle grow because it looks like it hasn’t been affected?

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I’m a bit confused with the fertilizer too! There’s dry, liquid and soluble and I’m not really sure what’s better to use or the difference between dry and soluble.
The smaller plant is a little more than a week younger and didn’t get any miracle grow.
For lighting I have a cheap two foot red/blue light from Walmart and another supposedly 1000w light. It’s called FECiDA Dimmable LED Grow Light 1000W from Amazon.
I’ll upgrade in the future to something better, I just didn’t want to sink too much money as this was more of a test run growing. If you have a recommendation of good decently priced lights, I’d love to hear them.

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Horticulture Lighting Group… HLG

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HLG or AC Infinity has some new lights that want break the bank :love_you_gesture:

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Do you already have nutrients? If not look into Jacks 321. Simple. Clean and a little goes a long way :love_you_gesture:

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@Putridsmell I would just give her straight water like what was said and when transplant use cannabis friendly soil if your able to get some kelp or fish stuff use little bit here and there and she will bounce back for you

You’re in good hands here. Welcome to the community!!

I’d say you found your problem then growmie. Gl! I agree with all the above post.

I looked into jacks. From what I seen they only sell dry fertilizer so I’m wondering how could I use that. I bought some ocean forest soil and I’ll transplant them this upcoming weekend.
Would I need to transplant them again in about 4 weeks with jacks mixed in or should I just mix it in when I transplant them?
I was also looking at fox farm for liquid fertilizer and was curious if anyone has used that. I would think liquid would be the easiest way as I could just add it in when I water.

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Jacks 321 is 3 parts and mixed in water. Part A, epson which you can purchase separately and cheaper and Part B. The FF Ocean Forrest will feed the plant for approximately 4-6 weeks before nutrients are needed. Do you have a PH and TDS pen? These will be needed for mixing any nutrients to the correct PPMs and PH as well as the run off. Checking the mediums run off let’s you know the amount of available nutrients in the soil. I like the FF Coco Loco for a bag medium and water the plants to run off around week 2ish of veg after the 14 day seedling period. I start feeding nutrients once that run off is 800 or less on the PPMs and feed at 1000 and a PH of 6.5 for soil using a drench to drought routine :love_you_gesture:

This was the last run off reading on the coco loco that’s 4 weeks old

Jacks 321 line up

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