Upper leaves turning yellow and curling downward in 2nd week of flower

I think it is just down to what growers prefer with the ec to ppm conversion. Damn i always went by 1ec equals 1000ppm!lol! I guess i always work in ppm not ec though so not a problem. think my essentials is set to x700ppm.

And yer max i wanted to go coco but with all the variables and problems i stuck to soil, much easier imo, although my soil is amended 10 to 20 percent with coir anyway. Peace

They have been in coco from the start.... I use water only once per week.... I guess it could be salt buildup, or nute lockout.... but I have googled it all and still cannot get answers....

RawBudzski said:

Actually, their is a Range it should be in. 6.2-6.8 your plant will still grow fine.. Regular water with ph of 7 is good to water with.

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Once again. Someone who thinks just because COCO looks like Soil, that you treat it like SOIL. COCO NEEDS TO BE PH'D TO 5.3-5.8 end of story!!!!!!!!!! Your PH is out of wack. Stop listen to soil growers on how to work with COCO.

Once again I was referring to Soil Eagle Eye.

Lord Dangly Bits said:

Once again. Someone who thinks just because COCO looks like Soil, that you treat it like SOIL. COCO NEEDS TO BE PH'D TO 5.3-5.8 end of story!!!!!!!!!! Your PH is out of wack. Stop listen to soil growers on how to work with COCO.

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10 character limit.

RawBudzski said:

I did not read that it was coco and im no vet or pro @ it. Honestly look into it cause coco may be diff.. i never used it. sorry for Referring to soil

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Lord Dangly Bits said:

Once again. Someone who thinks just because COCO looks like Soil, that you treat it like SOIL. COCO NEEDS TO BE PH'D TO 5.3-5.8 end of story!!!!!!!!!! Your PH is out of wack. Stop listen to soil growers on how to work with COCO.

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But the thing I don't understand is that "some" people will tell you to treat promix as hydro too just because there isn't any food in it. I don't know the exact range for coco but I'm pretty sure that's a ph issue that is causing nutrient lockout.

Why did I choose coco........ LOL.....

jayfury said:

LOL... Me too!!!! Im gonna go on what I was told by the Hydro store guy for now I guess..... He said to Lower the PH of my feedings to 4.9 for a few days, and use ZERO nutrients..... He said it will slowly bring down that runoff over a few days, and force it to use what it has stored up in the pot.... Hopefully things look better soon..... But Im still open to any advice.... and the answer to my PPM question on the Bluelab Truncheon...... Which PPM do I look at? The EC X's 500 or the EC X's 700?? Thanks guys

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That is pretty good advise for coming from a Hydro shop guy. Most of them are highered hands and know nothing but what they have been told.
One the CEC or PPM. To me when someone says feed your plants 850PPM and it will love it. PFFT!!!!! Different strains like different amounts of nutrients, and some nutrients might do better at higher of lower PPMs. You need to keep a journal. Once your plants hit are old enough to be fed. Feed them 1/4 strength and slowly over time continue to boost the amount of nutrients until you just start to get a little nut burn on the ends. Once this happens back off from that amount about 15-25% and you will know what EC or PPM to feed with that strain and Brand of nutrients. I have had plants that love to drink heavy amounts of nutrients. AT like 1200 PPM. But then another strain I grew could not handle over 500 PPM. This is why when ever someone says to feed your plants XX amount of nutrients andm they do not even know the strain, I throw that bit of information out the window.

COCO is so Easy to grow in, I am teaching George the Monkey to grow my next crop. But you have to treat it like COCO, not soil and Not DWC, COCO!!!!!!

Your Hydro shop Guy basically told you to do the same thing as I did. So do what he suggests. But I would start giving 1/4 str nutrients after the 2nd to 3rd watering. Continue with that strength. PH'd at 4.9-5.2 until the PH is corrected

For your first grow, coco was probly not a good idea. If you are set on hydro, try rockwool or the clay rocks. They are easier to control and maintain. Coco PH should NOT be 5.5-5.8 Feed your coco plants with a PH just over 6. You are not growing in clay rocks or rockwool. So why would you want your ph so low? Also if you have been watering with plain water once a week, then salt build up is probly not your problem

Jay, Do yourself a favor. Watch all three parts of this Info Video on COCO from CANNA. Stop listening to people who do not use COCO. And enjoy the Buds you harvest. Anyone that says that COCO does not have a PH target of 5.3-5.8 either think it is like soil, or are just trying to screw you up.

http://www.youtube.com/watch?v=9MKGJFR-3t4

I'll give you both that, coco aint for beginners generally but hell why not start at the top!lol!. Peace

Hey my 1st grow was Hydro DWC.. funnest shyt ever. Only thing is, I needa move my plants often.. not good for hydro

you check for mites?

Hey bud, How many inches down in the coco is it saturated too. you can alway's make a what I call an emergency cocktail. If you don't have p.H down you can use lemon or lime to adust pH. take 4 drops of lime (fruit) into approx 1.5 liters to lower from 7 to 6.2-6.5. Then add dolomitic lime with magnese , to the proper ratio, give it a good tea spoon any way. water your plants with soluble lime/mag (stone) and drops of lime or ph.down. you can just go to the store and by a lime you don't have to go to a hydroponic store to get expensive p.h down. and the dolomitic lime is the brand with magnese added (home hardware). I crush up the limestone and mag even harder so it's more soluble, It's a home remedy that I have perfected it's kinda hard to do perfect ratios when i'm not in front of the plants and substate tho. the lime will begin to change the chemical compisition and unlock nutes, you need to stop flushing and start adding nutes, cause it's either over watering or a nute defeciancy. try crushed up time release nitrogene capsules in tha cocktail too. IDK what other ppl think, just try it, it won't hurt if you do it rite, Ive only ever done this to friends crops, cause I build my own soils with organics and conditioners

Shaney, do you grow in Coco??

I would say calmag and flush those bitches. Looks like salts are building up in your coco which is common. What is your feeding schedule like? Im am growing in coco as we speak but I make my own mix with chunk coarse perlite and coco never straight coco for various reasons although I have buddies that grow in straight coco and they do well.

Lord Dangly Bits said:

Once again. Someone who thinks just because COCO looks like Soil, that you treat it like SOIL. COCO NEEDS TO BE PH'D TO 5.3-5.8 end of story!!!!!!!!!! Your PH is out of wack. Stop listen to soil growers on how to work with COCO.

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Lord is correct. That is for soil grow. I cant believe someone would even say this. Maybe they did not read the whole thread and thought it was coco. I find this weird coming from raw budski. Your PH is too alkaline if your are giving them anywhere in the 6's especially high 6's. I like to keep my coco at 5.5 - 5.8 I even think 5.3 is a little too acidic if you think about it.

I sent a link of this pg to a coco expert. He'll know what to do.

Maybe you YOURSELF did not read the entire thread. I already told him I was speaking of Soil. I understand though, You see a Name in RED and read no further !

MEGAyielder420 said:

Lord is correct. That is for soil grow. I cant believe someone would even say this. Maybe they did not read the whole thread and thought it was coco. I find this weird coming from raw budski. Your PH is too alkaline if your are giving them anywhere in the 6's especially high 6's. I like to keep my coco at 5.5 - 5.8 I even think 5.3 is a little too acidic if you think about it.

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Please Refer To Post #39 I believe.

Impossible to Slam a Troll King. I am Honored by your attempt though.