Help with white widow auto plz!

[flooop]

Hi all hope you having a great weekend, first time growing auto, they are almost 3 weeks old from seed, been water with ph water only and I'm using fox farm soil (pic below) temp been around 65-70 and humidity about 40s, I haven't add any nuts to the water since were I got the soil they told me I shouldn't need it until the plant its a bit older, so I notice some brown spots on the leaves, plz need some help, thanks!!

 

[hotrodharley]

You need to increase your humidity. You also need to feed. If you are using LED you need to raise the light.

 

[flooop]

You need to increase your humidity. You also need to feed. If you are using LED you need to raise the light.

I will thanks!! Any recommendations how to increase humidity?

 

[hotrodharley]

I will thanks!! Any recommendations how to increase humidity?

Depends on grow area size. In my tent I use a room humidifier. Beware it adds heat.

 

[delstele]

Looks to me like over watering with a dash of stagnate air. Get some air moving..

 

[flooop]

Depends on grow area size. In my tent I use a room humidifier. Beware it adds heat.

I just got and install a humidifier on my tent, definitely the humidity was low at 30, so at what Humidity should I set up the humidifier?
Thank you!

 

[flooop]

Looks to me like over watering with a dash of stagnate air. Get some air moving..

I been using one gallon for 3 plants on 5 gal pots, should I use less? Thank you!

 

[hotrodharley]

I just got and install a humidifier on my tent, definitely the humidity was low at 30, so at what Humidity should I set up the humidifier?
Thank you!

Try for 50%.

 

[delstele]

I been using one gallon for 3 plants on 5 gal pots, should I use less? Thank you!

You have to dial in your watering for what your plants are taking up, back off the water lift to see if the container feels light if so then give them a drink. I do see a need for air movement. When a plant is in a enclosed environment air exchange is kept to a minimum that my friend lead's to poor yields. A plant needs fresh air just like we do, think about sitting is class how stuffy the air gets I for one can't wait to get some FRESH AIR you plant feels the same way...

 

[flooop]

You have to dial in your watering for what your plants are taking up, back off the water lift to see if the container feels light if so then give them a drink. I do see a need for air movement. When a plant is in a enclosed environment air exchange is kept to a minimum that my friend lead's to poor yields. A plant needs fresh air just like we do, think about sitting is class how stuffy the air gets I for one can't wait to get some FRESH AIR you plant feels the same way...

cool, so I guess I need to put my fan on higher or add a few more, thank so much! I

 

[OldMedUser]

Using FF soil in 5gal pots those little plants shouldn't need any food for a long time. If anything it looks like nute burn starting which happens much easier when the RH is very low. I've been fighting low RH for almost 20 years so have seen symptoms like that very often. Feeding less in my soilless mix and using half the ppm in DWC seems to help prevent the toxic salts buildup I see in your leaves.

If your exhaust fan runs continuously you may find that a humidifier doesn't help much. Your fan is constantly sucking the moisture out and replacing the air with dry air. If you have a grow tent in a larger room then humidifying the room is best. Then the air coming in is at the correct RH and the plants will like that better.

Many humidifiers don't use a heating element to make water vapour. Some use a spinning wheel to make a mist or evaporative plates with a fan blowing thru them. No extra heat and much less power consumption. Some are ultrasonic and make a super fine mist that works very well. We have very hard water that plugs up humidifiers and coffee makers pretty quick so we use RO water for that and drinking. My 7 year old BUNN coffee maker still makes a full pot in under 3 minutes and has never been cleaned thanks to RO.

I been using one gallon for 3 plants on 5 gal pots, should I use less? Thank you!

You should soak the pots good and then not water for a long time until the pots feel light when you lift them. With plants that size it could be 10 days or more before they need water again.

I found a great spot to download FREE POT BOOKS. I downloaded a grow bible first and got lots more. Books look great and complete like the real ones I have here. No web site but just a page of links. Just right click on what you want and then "Save Link As" to download so they don't open first as some are 50+ megs. They got lots. Enjoy.

 

[Budzbuddha]

Since it’s an auto sitting in a charged medium like FFOF , it really does not NEED extra Nutes added. FFOF is a bit hot for some plants as it seems with yours ..... BUT without adding anything it will acclimate on its own with just watering.

A plant of that size does not need the entire container watered , a lower amount around plant base , spread out over days ( depending how quickly it dries ) . PH at 6.3 to 6.5 only. No special “ stripped “ water. You can use tap. FFOF prebuffered right out of the bag.

Vegging RH should fall between 40-70% with it falling back at flower.
Anything you do wrong between now and transition ( preflower ) will affect the end result.
Most growers overthink AUTOS ... they are plug and play.
FFOF will carry that plant EASILY for up to week 6 of growth from seed.
By then it will begin transition around Day 30ish or so. It will STILL FEED from the soil mix.

After 2 weeks of actual flower , a bloom supplement will start , as plant reduces nitrogen needs .
You are letting the stretch phase FINISH and SLOW before Adding bloom.
It uses what nitro in medium and leaf to carry stretch and branching during this time.

Just correct the RH , light height , temps and proper air exchange and let it do it’s thing.

 

[flooop]

Since it’s an auto sitting in a charged medium like FFOF , it really does not NEED extra Nutes added. FFOF is a bit hot for some plants as it seems with yours ..... BUT without adding anything it will acclimate on its own with just watering.

A plant of that size does not need the entire container watered , a lower amount around plant base , spread out over days ( depending how quickly it dries ) . PH at 6.3 to 6.5 only. No special “ stripped “ water. You can use tap. FFOF prebuffered right out of the bag.

Vegging RH should fall between 40-70% with it falling back at flower.
Anything you do wrong between now and transition ( preflower ) will affect the end result.
Most growers overthink AUTOS ... they are plug and play.
FFOF will carry that plant EASILY for up to week 6 of growth from seed.
By then it will begin transition around Day 30ish or so. It will STILL FEED from the soil mix.

After 2 weeks of actual flower , a bloom supplement will start , as plant reduces nitrogen needs .
You are letting the stretch phase FINISH and SLOW before Adding bloom.
It uses what nitro in medium and leaf to carry stretch and branching during this time.

Just correct the RH , light height , temps and proper air exchange and let it do it’s thing.

I will thank so much for your great help!!

 

[flooop]

Using FF soil in 5gal pots those little plants shouldn't need any food for a long time. If anything it looks like nute burn starting which happens much easier when the RH is very low. I've been fighting low RH for almost 20 years so have seen symptoms like that very often. Feeding less in my soilless mix and using half the ppm in DWC seems to help prevent the toxic salts buildup I see in your leaves.

If your exhaust fan runs continuously you may find that a humidifier doesn't help much. Your fan is constantly sucking the moisture out and replacing the air with dry air. If you have a grow tent in a larger room then humidifying the room is best. Then the air coming in is at the correct RH and the plants will like that better.

Many humidifiers don't use a heating element to make water vapour. Some use a spinning wheel to make a mist or evaporative plates with a fan blowing thru them. No extra heat and much less power consumption. Some are ultrasonic and make a super fine mist that works very well. We have very hard water that plugs up humidifiers and coffee makers pretty quick so we use RO water for that and drinking. My 7 year old BUNN coffee maker still makes a full pot in under 3 minutes and has never been cleaned thanks to RO.



You should soak the pots good and then not water for a long time until the pots feel light when you lift them. With plants that size it could be 10 days or more before they need water again.

I found a great spot to download FREE POT BOOKS. I downloaded a grow bible first and got lots more. Books look great and complete like the real ones I have here. No web site but just a page of links. Just right click on what you want and then "Save Link As" to download so they don't open first as some are 50+ megs. They got lots. Enjoy.

Thank so much for your help! I will follow your advise!