stumped, it's time for some help!

[dgr]

Flush? DWC? Huh?

Micro doesn't contain any magnesium. Gro and Bloom do

Can you check your numbers in the calculator? It says you are adding 16.9 OZ, 33 OZ and 50 OZ to a 5 gallon reservoir. That's what you would put in a 100 gallon reservoir. What are the actual numbers in mL or oz per gallon that you are using?

If it is a mag deficiency, a foliar feed of epsom salts would be the fastest cure.

 

[Dropastone]

well you can flush in DWC you just use pH adjusted water and that's it.

Yeah your right it contains calcium but no magnesium.

Sorry about that picture I forgot to hit refresh when I was there to get the screen shot.

two grows ago I originally started out with those numbers but my plant was being fried alive. Since then I have been reducing those numbers and I've been seeing some improvements but I still have the burned up looking leaves.

Now I'm using 10 ml grow, 20 ml micro and 30 ml bloom per 5 gallons which come out to around 700 ppm.

 

[blahman]

It does look like a potassium and a bit of a cal/mag difficiency. Also a ph of 5.5 is what everyone recommends these days but I grew for years at a ph of 5.8 without issues.

I would raise the ppm up to 900-1000ppm and aim for 1100 over the next couple weeks. If the plant can't take that then I don't know what to tell you besides toss it and start over. If it can't take at least 1000ppm during flower its not going to produce very good.

 

[Dropastone]

Alright everybody thanks for all your input. I'm gonna up the nutes and just see what happens because they do look underfed, but I feel I already know what the outcome will be. After this round I wont have to worry about it anymore because I'm stating a new strain after this flower session is over.

I'll post some updates down the road.

Peace.

 

[miltonchitlin]

I would take your distilled water and add a cal-mag supplement until your at about 130 to 150ppm. This will give your water the proper buffer it requires to avoid rapid changes in PH. Then I would mix your nutes 1/3 to 1/2 strength and then PH that down to 5.5 to 5.8.

Your new growth should look healthier.

 

[Admiral Canna]

I second what Milton said ^^^. Beat me to it.

I do beleive yer outdoor plant looks so much better because you can't beat Mother Nature. She provides it all.

I find that a pH of 5.8-6.0 is perfect in buckets. But I haven't run GH in them yet.

Hope you get it straightened out. Also glad to hear you are moving on to bigger and better strains. As my sig says.....

 

[Dropastone]

I'll give some cal/mag a shot I've got nothing to loose but a few bucks. I wish now I would have bought it at the hydro store a cpl of days ago when I was looking at it.

Speaking of new strains I just got done putting 8 little seedling in some dirt. NL#5. Now it's time to grow em, clone em, sex em and throw out the males, all in that order. I'm so ready to start growing some good genetics.

Thanks again everybody.

Peace.

 

[Japanfreakier]

Just add some epsome salt to your mix

 

[Dropastone]

How much Epsom salt per gallon?

 

[Japanfreakier]

I put a pinch whatever that works out to.

 

[treefrog]

tsp per gallon

 

[dgr]

You aren't running any of the bottom three items in their calculator, right? If so, you are not using the recommended doses as your ratios are off without all of them in combination. All three of the lower ones contain Phosphorous and other elements to provide the proper ratios to your plant. I don't think you are burning your plants. I think you are starving them of phosphorous and magnesium because you think the phosphorous deficiency is nute burn. You really should do that google search I suggested earlier. Then look at the phosphorous deficiency in flower picture.

Unceremoniously ripped from cannastats calculator. This is your nutrient profile.

Nitrogen N Total 89.8 0 0 90
Phosphorus P 25.3 0 0 25
Potassium K 74.6 0 0 75
Magnesium Mg 18.5 0 0 18
Sulfur S 10.6 0 0 11
Calcium Ca 79.3 0 0 79

Active Elements 300
Estimated [email protected] 791
Estimated [email protected] 565
Estimated EC/mS 1.13
Estimated EC/uS 1130

Looks like you are low on phosphorus and Magnesium. Your ratios should be 100:100:100-200:60 NPK and Mag.

I'm not seeing 700 PPM there. I see 791 TDS at .7. I think you should probably have a much higher TDS and the proper amount of Phosphorous and Magnesium.

1 gram in 5 gallons of Epsom salt will give you

Mg 5.1
S 6.7


If that was my DWC, here is what I'd do and it wouldn't cost anything. I'd grab 40 mL of micro, 80 mL of bloom, throw them into 5 gallons of water and harvest the plant when they finish. Actually, I'm a wimp so I'd start a little lower than 8/16. But I'd keep the Lucas ratio. Or IF I wanted to use the Flora grow, I'd use this calculator:
http://www.generalhydroponics.com/genhydro_US/fchcol.html
and probably end up around 4/7/15 GMB

You can also go to cannastats and play with the calculator if you want to use your flora grow.

best of luck

 

[JamieShoes]

good that you hit upon why this plant is hungry

 

[Dropastone]

You aren't running any of the bottom three items in their calculator, right? If so, you are not using the recommended doses as your ratios are off without all of them in combination. All three of the lower ones contain Phosphorous and other elements to provide the proper ratios to your plant. I don't think you are burning your plants. I think you are starving them of phosphorous and magnesium because you think the phosphorous deficiency is nute burn. You really should do that google search I suggested earlier. Then look at the phosphorous deficiency in flower picture.

Unceremoniously ripped from cannastats calculator. This is your nutrient profile.

Nitrogen N Total 89.8 0 0 90
Phosphorus P 25.3 0 0 25
Potassium K 74.6 0 0 75
Magnesium Mg 18.5 0 0 18
Sulfur S 10.6 0 0 11
Calcium Ca 79.3 0 0 79

Active Elements 300
Estimated [email protected] 791
Estimated [email protected] 565
Estimated EC/mS 1.13
Estimated EC/uS 1130

Looks like you are low on phosphorus and Magnesium. Your ratios should be 100:100:100-200:60 NPK and Mag.

I'm not seeing 700 PPM there. I see 791 TDS at .7. I think you should probably have a much higher TDS and the proper amount of Phosphorous and Magnesium.

1 gram in 5 gallons of Epsom salt will give you

Mg 5.1
S 6.7


If that was my DWC, here is what I'd do and it wouldn't cost anything. I'd grab 40 mL of micro, 80 mL of bloom, throw them into 5 gallons of water and harvest the plant when they finish. Actually, I'm a wimp so I'd start a little lower than 8/16. But I'd keep the Lucas ratio. Or IF I wanted to use the Flora grow, I'd use this calculator:
http://www.generalhydroponics.com/genhydro_US/fchcol.html
and probably end up around 4/7/15 GMB

You can also go to cannastats and play with the calculator if you want to use your flora grow.

best of luck

Alright I did the Google search and found the thread. I totally agree that this appears to be my problem. The pictures in veg and flower are spot on with what I'm seeing on this end. Great thread by the way and thanks for turning me on to that.

So I just got done changing my res out with the Lucas formula. I mixed 40 ml micro and 80 ml bloom and came up 1330 ppm @ a 0.7 conversion. Although I added 1 gallon of pH adjusted water to my res first then added the Lucas to dilute the overall mix down to 1120 ppm with a pH of 5.8

So now I guess I will just have to wait and see what happens

Also with this I shouldn't have to add Epsom salt or cal/mag correct?

Thanks for taking the time to help me out. I'll post an update in about a week.

Peace.

 

[Japanfreakier]

You shouldn't have to add the epsom but it will probably help. On paper it looks like the MG should be enough but I think it never seems to be.

 

[Dropastone]

Well I just ordered some Cal Mag Plus 32oz from eBay for 19.95 shipped. My closest hydro store is 30 miles away and they want 17.95 for the same stuff. I figured I'd burn way more than 2 bucks in gas driving to get it.

Anyway I should be set and I'll have it on hand if I need it.

Is there such a thing as having to much calcium or magnesium in your reservoir? Because I'll add some to the res when it gets here if I need to.

 

[Japanfreakier]

Sure they are a salt mineral like anything else so if your EC is too high it would cause problems but at the strength you're using I'd just add what they say to.

 

[Dropastone]

Thanks for he answer. I just didn't want to add any if I didn't need to. The reason I was asking if I did add some at the recommended dose would it have adverse affects at the strength I'm running now.

Thanks.

 

[Neo 420]

Thanks for he answer. I just didn't want to add any if I didn't need to. The reason I was asking if I did add some at the recommended dose would it have adverse affects at the strength I'm running now.

Thanks.

I would definitely add some. Just add a little less of your main nutes.