Ph issue?

Genetics: 1 NL Auto and 1 WW Auto 3wks
Soil: equal parts EWC,peat,perlite
Pots: 2"x2" plastic pots
Environment: Mars300 led, 75-82 temps 50-65 RH fans to circulate are 4" exhaust

First time using a homemade "seedling mix"
I did not add lime to the mix.
Using water that I bubble for at least 24 hrs. Let the pots dry completely before watering. Every 3 or 4 days
Plants seem to be growing really slow and and bottom leaves are starting to yellow.
Also one of them is already gettin white hairs on the main stem. There are only like 3 nodes! I can post more or better pics if needed.

I am a noob so any and all help is appreciated. TIA!

you're drowning them. likely not enough root mass for the water quantity you are adding, possibly coupled with poor drainage or aeration.

I was thinking that too. The medium is 1/3 perlite and I get the pots to were they feel light before I water again and I would only give maybe a 1/2 to 3/4 cup of water. By the time I water the pot is so dry water damn near runs straight out so I let them soak back up. I'll stop doin that and go back to just using my spray bottle and just soak the top everyday

What's this homemade seedling mix? You need some kind of ph buffer in the soil. And the plant is showing suffocation, the leaves should never droop and if they do that's the plant telling you it can't breath. 99% of people's problems stem from over watering! Never water you plants unless the pots are feather light and if they droop after you water, that's them telling you they didn't need water even then. Uniform yellowing, drooping, yellow botching all signs of over watering and that's when newbies start dumping in more nutes and more water thinking they have a deficiency and make shit worse, when all along they just needed to let their plants breath! But I'm not so positive watering is your problem. You have to have some kind of buffer in the soil or your plants can't stabilize and eat!

Hey there. I might add a thing or two if that's ok. First off, with auto flowers you should start them in their permanent homes. If you plan on flowering in a 3g pot, then germinate in them. The reason is transplanting disturbs them and delays them. Delays mean smaller rootmass and buds. I'd transplant them asap into their final pot.
Second, what's your water like? Ppm and ph? Ph matters so you'll want to ph to 6.3 ish.
Third, your soil mix doesn't have many nutrients in it. You'll have to look into supplementing. Autos typically like weaker nutes. Start feeding at half strength.
To recap, transplant into final pot using your mix, water in with ph'd water until you get runoff then pour out the runoff and let her do her thing until she's dry. It will take a while.
One more thing, why are the leaves wet in the picture?

My mix consist of equal parts of EWC, peat, and perlite. I have lime that I can sprinkle on top of that will help. I have let the pot get completely dry before watering but maybe I'm giving too much water when I do water. I have a pot to the side filled with the same medium that I compare the weight to decipher when to water. They just seem to be growing very slow.

Chef420 said:

Hey there. I might add a thing or two if that's ok. First off, with auto flowers you should start them in their permanent homes. If you plan on flowering in a 3g pot, then germinate in them. The reason is transplanting disturbs them and delays them. Delays mean smaller rootmass and buds. I'd transplant them asap into their final pot.
Second, what's your water like? Ppm and ph? Ph matters so you'll want to ph to 6.3 ish.
Third, your soil mix doesn't have many nutrients in it. You'll have to look into supplementing. Autos typically like weaker nutes. Start feeding at half strength.
To recap, transplant into final pot using your mix, water in with ph'd water until you get runoff then pour out the runoff and let her do her thing until she's dry. It will take a while.
One more thing, why are the leaves wet in the picture?

Click to expand...

I have 3 gal pots that have an organic mix that I made. It has been cooking for over 6 months. I started in small pots in fear of overwatering. But it has some EWC in the mix so I thought that should be enough nutrient to get me through the first couple weeks until I transplanted into pots with feed. I use bubbled tap water that has a ph of about 7.5. When I water there is little runoff but I have the pots raised on a drying rack to keep from saturating runoff. The reason the leaves look wet is cause I use a spray bottle to mist the soil when water instead of just dumping water in. After 3 weeks the roots still have not shown out the bottom of the pot.

No its a good thing to soak the medium until run off every watering and like you said wait till completely dry. I'm sure it must be the lack of PH buffer, plants can't thrive without it really. If I was you I would transplant the girl into some soil that you've limed but remember be extra easy with lime and if it's pellets crush them pellets into dust and I would only add about a tsp per every 3 gallons because lime will burn the roots after a few weeks if you add to much. Or just go grab ya some soilless and transplant into that.

I transplanted into my bigger pots with good soil. The lime that I used was powder. I followed s recipe for amounts so it should be legit. It also has oyster shell flour in it. I also put a sprinkle of mycos in the bottom of the hole when transplanted. I hope these take off from here and next time I will put a sprinkle of lime in my seedling mix.