Possible cal mag proplem
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Aussieaceae
Well-Known Member
Otherwise looks healthy to me, no rust spots on the lowers?
Ime when the tops are pale, either it's been from cold (outdoors) and indoors ph a bit too low / high ec causing lockout. (hydro)
When I've truly had calcium deficiency I had rust spots on my lowers.
Give some more details about your setup if possible, grow method / medium, npk + ec / ppm, ph etc.
I'd be inclined to consider raising ph a little if it's below ph6 and lowering ec a touch, to be certain it isn't either of those things before adding extra.
Are the tops greening up during the light cycle, or do they stay that way?
Ime when the tops are pale, either it's been from cold (outdoors) and indoors ph a bit too low / high ec causing lockout. (hydro)
When I've truly had calcium deficiency I had rust spots on my lowers.
Give some more details about your setup if possible, grow method / medium, npk + ec / ppm, ph etc.
I'd be inclined to consider raising ph a little if it's below ph6 and lowering ec a touch, to be certain it isn't either of those things before adding extra.
Are the tops greening up during the light cycle, or do they stay that way?
Kassiopeija
Well-Known Member
healthy
majjy_rane
Active Member
brainfucks me all the time and if you take them under the sunlight they just look normal, at such times i wished i´m not paranoid. i´m not paranoid. no
majjy_rane
Active Member
i´m not paranoid. no
Aussieaceae
Well-Known Member
I put it down to cold outdoors, because the nights get cold. By midday tops were stellar.
On the flip side running DTW indoors tops were yellow towards lights out, green lights on and ime this was due to high ec. They photosynthesise and drink so fast, sometimes the ec would be too high in the media, and by lights out tops were starting to pale.
Wnen the tops were yellow throughout the whole cycle, in my case ph was the culprit every time.
majjy_rane
Active Member
how can ec be an issue by a DTW? sorry for my dumbness
Aussieaceae
Well-Known Member
Because they drink and transpire so much. It was grower error on my part, lowering ec fixed it for me. (coir)how can ec be an issue by a DTW? sorry for my dumbness
They'd love the feed, look great for half the day, but pale tops by lights out. Usually 2 feeds per day.
First off i assumed it was the from hps, wasn't the case at all.
Coir can be pretty damn absorbant and if your base ec is a little too high, doesn't take long at all buildup to happen. For what it's worth, I haven't had the same thing indoors using soil.
I know what you're saying about sometimes they appear pale under the lights, but look immediately fine under normal light. Not the same thing.
majjy_rane
Active Member
i see, still try to understand how there can be a build-up if it drains anyway unless the feeding is too less or the medium mix-ratio isn´t balanced but what do i knowBecause they drink and transpire so much. It was grower error on my part, lowering ec fixed it for me. (coir)
They'd love the feed, look great for half the day, but pale tops by lights out. Usually 2 feeds per day.
First off i assumed it was the from hps, wasn't the case at all.
Coir can be pretty damn absorbant and if your base ec is a little too high, doesn't take long at all buildup to happen. For what it's worth, I haven't had the same thing indoors using soil.
I know what you're saying about sometimes they appear pale under the lights, but look immediately fine under normal light. Not the same thing.
Aussieaceae
Well-Known Member
Buildup is buildup dude, doesn't matter how good your mix ratio is. Grower error on my part, lowering ec fixed it for me, all i'm saying.i see, still try to understand how there can be a build-up if it drains anyway unless the feeding is too less or the medium mix-ratio isn´t balanced but what do i know
There's more than one way plants can get yellow tops. But i ain't an OG, just a hobby grower, so what do I know...
Advise the OP on what you would do yourself, instead of quoting myself.
I'm not interested in debating our experience in slightest.
Be well.
majjy_rane
Active Member
you´re right got drifted awayBuildup is buildup dude, doesn't matter how good your mix ratio is. Grower error on my part, lowering ec fixed it for me, all i'm saying.
There's more than one way plants can get yellow tops. But i ain't an OG, just a hobby grower, so what do I know...
Advise the OP on what you would do yourself, instead of quoting myself.
I'm not interested in debating our experience in slightest.
Be well.
however still can´t see OP´s issues 
ain´t an og either.happy grow
TumbleWeed70
New Member
This is my BC Cheese 3rd week of flower, had the same issues. I am in Canada and my grow space is getting colder. I am trying a new method and am flushing the plants with 2 gallons of water at the middle of week 3 and dry out for 4- 5 days. Then feed once let it take in the nutrients and then flush again before week 5. It seems to be working that picture was taken before the first flush.
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TumbleWeed70
New Member
If you look at the pic close I have just discovered MITES lol here we go again by the way you get these things over 75 degrees or over 60 RH or both lol. now I have to save these.This is my BC Cheese 3rd week of flower, had the same issues. I am in Canada and my grow space is getting colder. I am trying a new method and am flushing the plants with 2 gallons of water at the middle of week 3 and dry out for 4- 5 days. Then feed once let it take in the nutrients and then flush again before week 5. It seems to be working that picture was taken before the first flush.