New Grower First Grow! (Biodiesel Mass)

The leaves browning on the tips are a sign of overfeeding/nutrient burn. The small spots are most likely Cal/Mag deficiency. Possibly due to ph being out of spec or from excess nutrient/salt build up in your soil. How many more days are left on them? A flush may be needed along with a weak Cal/Mag solution. What soil, nutrients, ph, etc are you using?

Soil: Fox Farm Ocean Forrest
Nutrients: General Organics GO Box
pH: I'm using organic nutes so I didn't buy a ph meter
 
I'm not an expert on cannabis issues. What I've read is most problems stem from soil ph. Are you checking the ph of the soil? What is the water ph going IN (irragation) and what is the ph OUT (runoff)?

You may want to post the pictures on the Hospital/Infirmary Forum. That way you'll be able to get prompt answers on any cannabis problems.

I think I'll try that.
 
I'm going to try flushing her with water along with CaMg+.
Wish me luck!
 
pH: I'm using organic nutes so I didn't buy a ph meter


I dont agree with this.

Knowing Ph is by far most important aspect of healthy grow.

You said You want to add camg, You know what? if ph of soil is to low the plant wont absorb ca mg.
 
Try giving her a good flush of ph'd water and 1/4 of the nutrients. The recommended flush is 3 times the container size. A three gallon container is 9 gallons of water. The cal/mag may not be absorbing (locked out) due to the soil ph. Adjust the ph to the range of 6.0-7.0. Anywhere in this range is good for cannabis growing. With soil it's not necessary to get it exact; just keep the ph in a +0.5 or -0.5. I try to keep in ph 6.0-6.5. That's been good for my Bubblicious'.

Any of the Fox Farm soils are acidic. They have nutrient built in the soil already to rock. Dolomite lime @ 1 teaspoon per gallon size can be added to the top of the soil and scratched in. This can help with the cal/mag issue too. I have found with Fox Farm soils is less is more and you really need to give the soil a good flush once in a while.

The idea is do not add anymore of anything till you get an idea of the soil ph.

Ph'd Water IN; Ph'd Water OUT can save you headaches later on.

There are good examples of the PH/SOIL formula on the AFN sites

Another two cents worth of info. My Auto grow with a Fox Farm soil was nerve racking to get the soil ph adjusted. My Photo grows loved Fox Farm and had no issues at all; from start to finish.
 
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Stop feeding start flushing. The nutes should have three numbers on the front of the package, ie. 6-3-6, the first number is nitrogen. Add water till run-off, discard run-off water, use 6.5 ph water, at lease 2 gal (should use 3gal for 3gal pot), cal-mag at 1/4 dose. This will flush out the salts and give you a better soil ph. I don't know about the nutes you have but if they came as a package one should be labeled bloom. Check and see if they list cal/mag and stay away from nitrogen (first number). If not sure add nothing, check light distance (if the back of your hand gets hot) the lights might be too close and causing stress. If you get the ph right the leaves should still have enough left in them to finish well, keep the faith.
 
Good info from both of you. If you have sledgehammer, use it. That should clear most of the excess nutes out, if not, a weak nutrient solution will actually clear the soil up more than plain water. The nutrients will have an ionizing effect on the salt build up and help pull it out with the water. Like VA said, though, do not use N. Use only P&K if you are going to use nutrients to flush.
 
On the 1st, I only had two gallons ready for flushing so I poured them in with CaMg+. The leaves that were already suffering didn't look any better, but the other leaves started looking much better. Today, I had 5 gallons of water prepared for my plant and flushed using 4 gallons. I used 1/4 strength nutes on the last gallon. Hopefully, it'll look better soon. I'll update with pics on the next watering.
 
We'll cross our fan leaves. :pop:
 
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