On going issues, heeeelp lol.

Mumbeltypeg

Mumbeltypeg

Well-Known Member
Mumbeltypeg said:
just checking here.. when you say you are mixing your nutes.. your not actually mixing the undiluted chemicals are you? You should be adding them one at a time to your res.. and then ph correcting, this could be causing issues with your Chem balance.
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what I mean is, you need to add chems to water so they are diluted when they come into contact with each other, if you mix them straight you will have unwanted chelation and chems becoming salts or insoluble and the plants won’t be able to uptake everything they need.
 
M

meerkat67

Member
GreenhouseGreen said:
TDS is Total Disolved Solids. It is probably the x500 scale. Quick math will easily verify that. The probe measures conductivity and the meter caluates it to what unit you want. On mine there's EC(mS/cm), CF(ECx10), PPM500, PPM700.

EC is easy but some nutrient companies will give you a target ppm. You just have to make sure you know which scale they're using. It also has the benefit of being slightly more precise on these meters. I don't know why they don't take the EC reading out to the hundreds decimal but you can dial in to a greater detail using ppm. I've found it isn't worth it. .1EC is 50ppm on the 500 scale. That's such a small window, I don't really care.

Good luck on your grow.
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Have just done everything via the recommended. It needed up being 1.9 EC at 5.9ph. I checked EC on the run off.. that was 1.7 and 5.7ph. Is this something to be concerned about?
 
curious2garden

curious2garden

Well-Known Mod
Staff member
GreenhouseGreen said:
TDS is Total Disolved Solids. It is probably the x500 scale. Quick math will easily verify that. The probe measures conductivity and the meter caluates it to what unit you want. On mine there's EC(mS/cm), CF(ECx10), PPM500, PPM700.

EC is easy but some nutrient companies will give you a target ppm. You just have to make sure you know which scale they're using. It also has the benefit of being slightly more precise on these meters. I don't know why they don't take the EC reading out to the hundreds decimal but you can dial in to a greater detail using ppm. I've found it isn't worth it. .1EC is 50ppm on the 500 scale. That's such a small window, I don't really care.

Good luck on your grow.
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His meter is on the 700 scale per the manual
Screenshot 2023-03-10 at 5.39.28 AM.png

The manual is here: https://bluelab.filecamp.com/s/SyCAZnqfiEMoAkKV/d
 
Splinter7

Splinter7

Well-Known Member
meerkat67 said:
oh absolutely, not disagreeing at all. I just tend to think it could be a cal/mag deficiency issue.. maybe with them being in the pot at 5.6-5.7 they aren’t in the range for it.. I believe they just grab at 5.8 and above right?
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unless i am blind today the interveinal margins are not yellow, the veins are yellow though. that should be something else, not cal or mag....but it looks like it from a distance.
 
M

meerkat67

Member
Splinter7 said:
unless i am blind today the interveinal margins are not yellow, the veins are yellow though. that should be something else, not cal or mag....but it looks like it from a distance.
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the veins are more or less green.. the interval margins as you put them are definitely tuning yellow/browny and suffering from some sort of chlorosis.. might be blind today mate… I’m thinking a potential Mag/cal with also more signs of ph fluctuations.
 
idioddity

idioddity

Active Member
meerkat67 said:
the veins are more or less green.. the interval margins as you put them are definitely tuning yellow/browny and suffering from some sort of chlorosis.. might be blind today mate… I’m thinking a potential Mag/cal with also more signs of ph fluctuations.
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Have you tried an epsom salt foliar spray for that magnesium deficiency? I’ve had this on the last two coco grows. The solution was to mix 1 tsp of epsom salt to 1 gallon of water and spray the plants just before lights-out once every three or four days. Don’t forget to spray the undersides of the leaves.

The affected leaves won’t clear up much but new growth should improve.
 
PopAndSonGrows

PopAndSonGrows

Well-Known Member
The interveinal "tiger striping" of the leaves is a telltale magnesium deficiency or lockout. Damn, your calmag supplement is 4-0-0?? I usually see 1-0-0 or 2-0-0 with those. . ..maybe you're still short on magnesium? A pinch of epsom salt in your nutrient mix (about .3gm/gallon) might help, adding more calmag could just cause a calcium or iron issue later. Just deal with the magnesium via use of magnesium sulfate, aka epsom salt.
 
Splinter7

Splinter7

Well-Known Member
meerkat67 said:
the veins are more or less green.. the interval margins as you put them are definitely tuning yellow/browny and suffering from some sort of chlorosis.. might be blind today mate… I’m thinking a potential Mag/cal with also more signs of ph fluctuations.
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ya, my shit was messed up this morning. damn. definitely needs to run some calmag and keep ph in normal ranges.
 
coreywebster

coreywebster

Well-Known Member
I'd imagine the issue is your feeding 1.2ec which is the total for all that shite your mixing in, meaning your actual base nutrients have been far too low.

I veg at 1.2ec and its all base nutrients. If I were adding unnecessary stuff it would be on top of that base level EC.

Basically underfeeding base nutrients
 
M

meerkat67

Member
PopAndSonGrows said:
The interveinal "tiger striping" of the leaves is a telltale magnesium deficiency or lockout. Damn, your calmag supplement is 4-0-0?? I usually see 1-0-0 or 2-0-0 with those. . ..maybe you're still short on magnesium? A pinch of epsom salt in your nutrient mix (about .3gm/gallon) might help, adding more calmag could just cause a calcium or iron issue later. Just deal with the magnesium via use of magnesium sulfate, aka epsom salt.
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What does that 4-0-0 exactly mean? I’m assuming I’ve far weaker than something you’ve used in the past?
 
M

meerkat67

Member
coreywebster said:
I'd imagine the issue is your feeding 1.2ec which is the total for all that shite your mixing in, meaning your actual base nutrients have been far too low.

I veg at 1.2ec and its all base nutrients. If I were adding unnecessary stuff it would be on top of that base level EC.

Basically underfeeding base nutrients
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Yeah, you could be right with this.. the recommendation is 1-3ml of the base A+B.. I’ll up that dosage to 3ml/L and go from there. I’ve already dropped some of those other bottles now.
 
M

meerkat67

Member
idioddity said:
Have you tried an epsom salt foliar spray for that magnesium deficiency? I’ve had this on the last two coco grows. The solution was to mix 1 tsp of epsom salt to 1 gallon of water and spray the plants just before lights-out once every three or four days. Don’t forget to spray the undersides of the leaves.

The affected leaves won’t clear up much but new growth should improve.
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I gave it one good feed of the salt spray couple of days ago. Definitely going to give it another hit if changing my nutes around don’t work hey
 
GreenhouseGreen

GreenhouseGreen

Well-Known Member
M

meerkat67

Member
GreenhouseGreen said:
Look at that. Right on the unit it has ECx500 and ECx700 under TDS and PPM, respectively. I guess I could've just looked that up and pointed it out.

Thanks for that. On car forums the acronym RTFM is used sometimes. Read The Fucking Manual.
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Are you telling me to read the manual? Lol
 
GreenhouseGreen

GreenhouseGreen

Well-Known Member
meerkat67 said:
Are you telling me to read the manual? Lol
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No.

I was just explaining what RTFM is short for. In situations like this some of the more aggressive members on car forums might, but not me. Her sending the link to the manual just reminded me of it. I'd be lying if I said I've read the manual to every appliance or piece of equipment that I own.
 
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