Blackness Spreading from Tips of Leaves

[knowmadic]

So this grow is in a space bucket and long story short the bucket got knocked over and rolled a little bit so the plant was buried under soil and I had to delicately extract it and re-plant it. I soaked the roots in water before re-planting it in moist soil and that was ~36 hours ago. I've kept it on it's normal light schedule however things are not looking good. The bottom leaves that you can barely see in the second image have some nute burn but that is just from FFOF, no extra nutes have been added. As you can see there are a few yellow spots which I believe was where water drops were and the plant got burned a little, but the blackness that is spreading on all the leaves is very concerning. What should / can I do. Is this plant calling it quits?

Location - Indoors
Stage - Vegetative (18 days from seed)
Strain - Blue Mystic
Temperature - 81F High, 73F Low
Humidity - 59% High, 42% Low
Light - 18/6 with 180w LED (21" Above Plant)
Medium - FFOF

 

[whitebb2727]

How often do you water it?

 

[knowmadic]

How often do you water it?

I water it when the first ~1.5-2" or so of soil is dry. Drainage is good, there is a layer of perlite in the bottom. I watered it 2 days before the accident that caused the re-planting and then I re-watered that day to ensure that the roots did not dry out.

 

[whitebb2727]

I water it when the first ~1.5-2" or so of soil is dry. Drainage is good, there is a layer of perlite in the bottom. I watered it 2 days before the accident that caused the re-planting and then I re-watered that day to ensure that the roots did not dry out.

How often dies the top one or two inches dry out? What size pot is that? What type of soil? Have you fed it anything?

Its better to lift the pot to see if it needs water.

The perlite in the bottom isn't doing much for the drainage.

When transplanting you don't have to water.

You may have some damage from the accident but I think your biggest problem is over watering.

 

[knowmadic]

How often dies the top one or two inches dry out? What size pot is that? What type of soil? Have you fed it anything?

Its better to lift the pot to see if it needs water.

The perlite in the bottom isn't doing much for the drainage.

When transplanting you don't have to water.

You may have some damage from the accident but I think your biggest problem is over watering.

It dries out roughly every 3-4 days I believe? There are 3 gallons of fox farm ocean forest, I have not added any nutrients, just pure water. What would you advise doing in my situation, and will the blackness fade away?

EDIT: By perlite in the bottom I meant there is perlite mixed into the FFOF, then a layer at the bottom, and then holes drilled in the bottom.

 

[whitebb2727]

Let it dry out some.

I'm not sure what the blackness is unless you dmaged the roots.


Not much can be done except proper watering technique and let it heal.

 

[whitebb2727]

Ive had so.e do that before if the leaves stayed in the moist dirt too much.

I think the yellowing is from over watering. Over water will cause one to droop and the leaves stay wet and start to rot.

Do you have a little bit of mulch or can you get a couple handfuls somewhere to put in you pot? That will keep the leaves no out of the mud.

Some say stretch is bad for seedlings. I've got to the point where I like a little stretch when they ate young so I get some room under them to water and what not.

 

[waterproof808]

Usually overwatering will only give you the droop but not yellowing. If you havent fed at all in 18 days, you might try a little compost tea or 1/4 dose of whatever veg fert you plan on using. Probably good to check your water source also. Are you using tap/RO/bottled water?

 

[Resinhound]

Usually overwatering will only give you the droop but not yellowing. If you havent fed at all in 18 days, you might try a little compost tea or 1/4 dose of whatever veg fert you plan on using. Probably good to check your water source also. Are you using tap/RO/bottled water?

Sorry but that's Bullshit. Overwatering CAN and does cause yellowing. It makes it impossible for the plant to take in nutrients.

 

[whitebb2727]

Usually overwatering will only give you the droop but not yellowing. If you havent fed at all in 18 days, you might try a little compost tea or 1/4 dose of whatever veg fert you plan on using. Probably good to check your water source also. Are you using tap/RO/bottled water?

Over water does cause yellowing.

If it needed feeding the yellow word start at the bottom and work up. I'm sure the 3 gallons of fox farm would feed it longer than its been alive.

The whole plant is yellowing out. The reason I suspect over water.

 

[SPLFreak808]

Usually overwatering will only give you the droop but not yellowing. If you havent fed at all in 18 days, you might try a little compost tea or 1/4 dose of whatever veg fert you plan on using. Probably good to check your water source also. Are you using tap/RO/bottled water?

It can yellow if overwatered, after all the pH doesn't swing enough for a proper feed if always wet bro, usually the first sign is p/mg/ca deficiency. Its hard to overwater in hawaii which is why you might have never seen it before.

@knowmadic
One things for sure, that plant should be way more green then that in FFOF. Overwaterd/bad soil batch or the pheno just doesn't straight up like ffof. (I agree with @whitebb2727 i'm gonna go with overwatered, but its just a guess)

Has anyone ever thrown you an empty soda can that you thought was full? Yeah you get the same weightless feeling when its time to water your pot.

 

[knowmadic]

It can yellow if overwatered, after all the pH doesn't swing enough for a proper feed if always wet bro, usually the first sign is p/mg/ca deficiency. Its hard to overwater in hawaii which is why you might have never seen it before.

@knowmadic
One things for sure, that plant should be way more green then that in FFOF. Overwaterd/bad soil batch or the pheno just doesn't straight up like ffof. (I agree with @whitebb2727 i'm gonna go with overwatered, but its just a guess)

Has anyone ever thrown you an empty soda can that you thought was full? Yeah you get the same weightless feeling when its time to water your pot.

This plant was looking beautiful before the accident, pure vibrant green. So like things were going very well before, I'm just trying to get them back to that point and I panicked when I found that one plant had the accident occur. I'm definitely willing to admit to the over-watering and see that as the most likely cause. Will the black leaves eventually fade away, and should I leave the light on the same light schedule it has been on?

 

[SPLFreak808]

This plant was looking beautiful before the accident, pure vibrant green. So like things were going very well before, I'm just trying to get them back to that point and I panicked when I found that one plant had the accident occur. I'm definitely willing to admit to the over-watering and see that as the most likely cause. Will the black leaves eventually fade away, and should I leave the light on the same light schedule it has been on?

Keep the lights at or more then 18 on. Let's take a look here, a plant uptakes water ect through its roots, if you give too much water then the plant can drink over a period of time (wet for a long time) then that's basically overwatering, now if you've damaged roots from the bucket accident or transplant, then the plant will drink even less water leading to more severe overwatering symptoms. Let her get dry a few times beforw watering (get a feel for the pots dry weight, dont push your finger on the top of the pot, not really a good indicator and it will just further damage more roots) you want to find the dry weight of the pot DURING its early wilt

 

[knowmadic]

Keep the lights at or more then 18 on. Let's take a look here, a plant uptakes water ect through its roots, if you give too much water then the plant can drink over a period of time (wet for a long time) then that's basically overwatering, now if you've damaged roots from the bucket accident or transplant, then the plant will drink even less water leading to more severe overwatering symptoms. Let her get dry a few times beforw watering (get a feel for the pots dry weight, dont push your finger on the top of the pot, not really a good indicator and it will just further damage more roots)

Gotcha, thanks for the advice. I'll monitor the situation closely and see what happens. Hopefully it'll make a rebound.

 

[ZoBudd]

Do you have a fan on her? If not, get a fan blowing on her. Looks like you may have some powdery mildew starting.

 

[knowmadic]

Do you have a fan on her? If not, get a fan blowing on her. Looks like you may have some powdery mildew starting.

Yeah, the space bucket has a fan that is directly pulling air over the seedling 24/7 and then there is another at the top that pulls it out. I think there might be a pH problem as well. I used to be able to use the tap water straight out of my house and it would always pH out nicely. I am going to pickup my pH kit today to test the local water of my new grow location. Leaves are beginning to "rust".. So bad pH and overwatering probably ended this one. Any opinions?