Rocket Soul
Well-known member
All im pointing out is that you follow temp recs to achieve plant health; your plants look pretty good to me, always listen and check on the plants first, the thermometer is secondary, not a goal in itself
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Issues after switching to LED lights
- Thread starter DokMcPuffin
- Start date
chronosync
Well-known member
Thats a great point and I totally agree!All im pointing out is that you follow temp recs to achieve plant health; your plants look pretty good to me, always listen and check on the plants first, the thermometer is secondary, not a goal in itself
chronosync
Well-known member
heres a breakdown of the feed im using lately. I use it like lucas formula more or less. With the extra calcium inputs I can adjust the N ratio of the Calnit w/o sacrificing calcium. Its basically a modified Jacks 321 formula. I use it for veg, flower, and to feed my mother plants.
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Porky82
Well-known member
Last edited:
Porky82
Well-known member
They look over watered and the dead tips on the new growth are a zinc deficiency.
Your pH is probably to high causing the zinc deficiency and also your roots are saturated stopping uptake.
If they were mine ide let em dry right out and give em a good flush with pH at 5.7 and nutrients at normal ec.
As others have said if it's to cold they will slow right down thus using less water and becoming over watered.
DokMcPuffin
New member
I let them dry out pretty good before i water so I know its not that, I lift the pot to check the heaviness also, but im sure I do have a PH issue and I have trouble keeping the temp above 70 I agree I think the Zinc is an issue. Thanks
DokMcPuffin
New member
only at 30% now. I have to ph my water so i could have PH issues also
Cactus Squatter
Well-known member
Are you running a humidifier at all? If not, run one until early flower and you’ll have a lot less deficiency issues, that was the biggest improving factor I saw when I adjusted after switching to LED.
Unless you’re somewhere it’s naturally really humid.
Also slightly upping the feed levels.
Unless you’re somewhere it’s naturally really humid.
Also slightly upping the feed levels.
Ca++
Well-known member
70f ?
Heat is a plant input. It's not just their to drive water movement. It's an energy input. With HID their was usually enough, and temp concerns were almost always about it being too hot. So for a long time, it wasn't at the forefront of peoples minds. However, it is a huge growth regulator. The number one crop steerer of cannabis, it has been said.
It's quite possible, that all the saved electric from the switch to LED, will be needed for a heater. It might even need to be an IR heater. Such that the best option, would actually be a HID.
It's cold here, so I'm using a HID. As a light source alone, It wastes 200w, compared to an LED. However, if I use LED and a 200w heater, it's nowhere near as effective, as using my light as a 200w heater. My heater warms the air, but my lights warm the plants. It's really that simple. Hot air can be extracted away before it's ever done anything. While hot plants for IR heat, are hot plants. The job has been done.
There must be a way of warming the grow. Maybe it's lowering heat loss, or heat recovery of what's been extracted. Or heat inputs, such as a dehu~ as they warm and dry, and so lead to lower extract needs. I have known garage growers who profited from me chucking a blanket over their tents. Have a good think.
70f isn't something I could work with. 75f has me wondering why I'm bothering. 77f is like a minimum for me, to feel like I'm getting things done. Some strains are actually rocking at 77f, but a few more, like 80f, tends to be totally inclusive
Heat is a plant input. It's not just their to drive water movement. It's an energy input. With HID their was usually enough, and temp concerns were almost always about it being too hot. So for a long time, it wasn't at the forefront of peoples minds. However, it is a huge growth regulator. The number one crop steerer of cannabis, it has been said.
It's quite possible, that all the saved electric from the switch to LED, will be needed for a heater. It might even need to be an IR heater. Such that the best option, would actually be a HID.
It's cold here, so I'm using a HID. As a light source alone, It wastes 200w, compared to an LED. However, if I use LED and a 200w heater, it's nowhere near as effective, as using my light as a 200w heater. My heater warms the air, but my lights warm the plants. It's really that simple. Hot air can be extracted away before it's ever done anything. While hot plants for IR heat, are hot plants. The job has been done.
There must be a way of warming the grow. Maybe it's lowering heat loss, or heat recovery of what's been extracted. Or heat inputs, such as a dehu~ as they warm and dry, and so lead to lower extract needs. I have known garage growers who profited from me chucking a blanket over their tents. Have a good think.
70f isn't something I could work with. 75f has me wondering why I'm bothering. 77f is like a minimum for me, to feel like I'm getting things done. Some strains are actually rocking at 77f, but a few more, like 80f, tends to be totally inclusive
