need help with seedling problem

I have grown outdoors for 38 seasons this is my first indoor- growing medium is 4 cubic feet pro-mix ph balanced at 6.5- added 15 pounds worm castings- with 1/2 bag of Happy Frog and 20% perlite- this mixture highly recommended by my equipment supplier- growing under a 1k MH at this time, temps are 76-to 80- 24 inches from canopy and 68 to 65 for night temp- plenty of circulation- RH between 57 and 20 - drops pretty low when heater comes on, added a humidifier this morning- Problem is seedling planted 9 days ago all growing very well- second set of leaves filling out- look good except there is an uneven color on some , very mottled - light to dark areas with soome of the leaves dropping- almost curling down but more of a droop- could this be root burn - been suggested my mixture is too hot for seedlings, if so how do I remedy this problem- obviously plan on transplanting to same medium, wish I had photos- I have Googled images and have not seen anything similar- could use all you experienced growers with this-

It could be that your mix is too hot for seedlings. Not sure about that.. I was thinking more on the lines of necrossis. With the description you gave it led me to that. It's where you have over or under watered. Use plain ph'd water and they should come around.:thumbsup:

I'm having the same problem myself at the moment.
Over-watering can cause these symptoms, but in my case I know that wasn't true. So I checked my water ph and found it to be a bit high. I got my run offs down to 6.8 and am waiting patiently to see if they improve.

sounds like to much water, let the soil dry out before watering again. buy digging with one finger about a inch in the soil check to see when it is dry like that. the surface might be dry but under that might be very wet.

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Originally Posted by RAINHAZE

I'm having the same problem myself at the moment.
Over-watering can cause these symptoms, but in my case I know that wasn't true. So I checked my water ph and found it to be a bit high. I got my run offs down to 6.8 and am waiting patiently to see if they improve.

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I am pretty sure it isn't overwatering. I have a moisture meter, a nice one. Before purchasing the medium got fairly dry. I' will check my run-off. If it is a hot dirt situtation - how would I resolve that issue- if it is flushing - how much and would'nt that change the soils PH being it is a PH adjusted product?

flushing doesn't change Ph if it is phed as well, but if your over watering them a flush is not to good letting them dry is good

You can use the simple " Pick up The Pot" trick.. If it's heavy no need to water. Sometimes dry is a great thang!

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Originally Posted by GaGrown

You can use the simple " Pick up The Pot" trick.. If it's heavy no need to water. Sometimes dry is a great thang!

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GA,
I have been using this method before meter purchase- also have plants in a clear 16 oz cup inside a 18 oz colored cup-I can visualy see dirt as well, this is why I feel an over water problem is not what may be going on

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Originally Posted by littlemountain

GA,
I have been using this method before meter purchase- also have plants in a clear 16 oz cup inside a 18 oz colored cup-I can visualy see dirt as well, this is why I feel an over water problem is not what may be going on

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As I previously posted ↑ I didnt think my problem (which is similar to yours) was overwatering either, even tho overwatering can cause the same symptoms.
I adjusted my H2o ph, & retransplanted to bigger pots and now they are doing much better. The new growth is perfect. (of course the old growth still looks shitty, but atleast now they are headed in the right direction.)
Sometimes after an adjustment ya just gotta wait a bit.

clear pots are a no no, you need pots that allow no light in their,, light trims roots or kills roots how ever you want to say it.

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Originally Posted by MadSativa

clear pots are a no no, you need pots that allow no light in their,, light trims roots or kills roots how ever you want to say it.

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the clear cups are inside a dark cup, no light touches the roots, you can pick up the clear cup to check root growth for transplant, my first time at this method, I like it so far- both cups are heavily punched for drainage and the clear is split to easily remove for the transplant:thumbsup:

next time just try some MG seed starter mix plus 20 perlite...save the worm castings for later...:)

E Tn here too LM. :thumbsup: Near Holston Mtn.

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Originally Posted by RAINHAZE

E Tn here too LM. :thumbsup: Near Holston Mtn.

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I can see into the GSMNP from my house , had some snow here 3 weeks ago 10 inches! , I live about 2,200 feet 300 below the common snow line, I love it here beautiful country

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Originally Posted by Dutch Pimp

next time just try some MG seed starter mix plus 20 perlite...save the worm castings for later...:)

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yes I will do it different next time, as of today 12 days from planting seeds , plants do look pretty good , except for the drooping problem which wasn't as bad today as before, the cups are filling with roots already- rained all freakin day here today and calling for some snow tomorrow

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Originally Posted by littlemountain

GA,
I have been using this method before meter purchase- also have plants in a clear 16 oz cup inside a 18 oz colored cup-I can visualy see dirt as well, this is why I feel an over water problem is not what may be going on

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Do you have room to transplant into a 1 gallon pot or bag?

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Originally Posted by GaGrown

Do you have room to transplant into a 1 gallon pot or bag?

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yes I do have room, and yes I did - they were definetly over watered- transplanted into 2 gallon pots in a dry mix- I thought this would help draw moisture from root balls. I know we are suppose to dampen new medium first but I was afriad to do this. when should I water the pots and how much- a full water till drain or lightly first? I mean the new dirt is dry- I have a high end moisture meter that is obviosly f----d up! by the way they were ready to move anyway-anxiously awaiting the forums reply-to hell with the meter I now have a dry pot that I will use as a weight sample and trust my judgement

I would water them now,but lightly.. Then in a day or so pick them up and use the pick up the pot method from here on.:thumbsup:

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Originally Posted by GaGrown

I would water them now,but lightly.. Then in a day or so pick them up and :use the pick up the pot method from here on.:thumbsup:

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Thanks for the quick responce GA:thumbsup: back at you

How are they doing today after the transplant?

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Originally Posted by GaGrown

How are they doing today after the transplant?

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24 hours after transplant they are doing great- 2 still a little droopy but I have high hopes for them also- I appreciate your input here :thumbsup:

Your very welcome! Keep us posted on ya progress!

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Originally Posted by GaGrown

Your very welcome! Keep us posted on ya progress!

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5 days after repotting the plants are doing great - I mean really good ! growth everywhere , even the first set of leaves are standing strong- I'll take a photo in a day or so and post- thanks for everyones help here :thumbsup:

I will not over water again

Good to hear littlemountain :thumbsup: Mine too are doing good now.
After I did the flush and transplant that I spoke of before, I waited 8 days till I watered. (It took that long for the pot to feel light enough.)
When I water, I give them enough for a good runoff, then wait for the pot to get light before watering again. I don't give them just a little bit of water at a time because it make's the roots grow upwards to search for the water.:thumbsup:

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Originally Posted by RAINHAZE

Good to hear littlemountain :thumbsup: Mine too are doing good now.
After I did the flush and transplant that I spoke of before, I waited 8 days till I watered. (It took that long for the pot to feel light enough.)
When I water, I give them enough for a good runoff, then wait for the pot to get light before watering again. I don't give them just a little bit of water at a time because it make's the roots grow upwards to search for the water.:thumbsup:

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I figure it will be 8 days plus before I water again , that doesn't leave a lot of opportunities to feed nutes though-If you water only once every week or so, how do you feed every other watering if veg state is short ?