Are my plants OK ?

Hei,

I'm at my first grow, and I think I've overwatered my plants, but I'm not sure, that's why I've decided to post a thread.
I have 3 girls in seedling stage, which are 13 days old, Big Bang AutoFlowering.

Specs
- 60 cm x 60 cm x 120 cm tent
- 150W MH - 20/4 - cooltube as well
- ventilator for the tent, for out-take of the air
- and a small ventilator for the plants
- 2 x ~250 ml and 1 x ~400 ml - pots
- temp ~22 C
- humidifier ~70 %
- no nutrients, ec is 0.0
- soil - biobizz lightmix (no affiliate or anything)

I've watered them after 1 week, with pH ~6 (+- 0.1) and water was bought from store, drinking water, and I saw it contains some calciu as well, not sure if that's bad, and if it is, how bad. I've kept it overnight with the bottle open, to evaporate the chlorine, and the water was adjusted with pH down.

So I've watered them after 1 week, and after 3 more days (10 days totally), I've lifted the pots, and decided that they are light again, and they might need a little water again, I know I know ... but I did it. After I've watered them the second time, I've started to see some signs of leafs curling a little, just a little down. They were growing just well, you could see them grow over night, and since the 2nd watering, they didn't grow up that good as before. Yesterday though, day 12, they were really down, and I guess the watering was the problem ...

Now, it's day 13, and they look a little better, and the 3rd node of leafs looks like it's getting a bit bigger.
I've turned off the humidifier today, as I've read that it might help drain the soil a little.

Another thing that I'm not sure about is my light. I've put it at around 40 cm since they sprout out, and kept pushing them up closer to the lamp. I was at 18 cm distance, but now I've took them down at 21 cm, because I wasn't sure if the light curled the leafs down, but I guess not.

I was also spraying them 2 times a day, with water, like 3-4 puffs / plant, but I've stopped doing that yesterday. I will get back on that once they look a bit better. I'm not sure if spraying will make it worse or help in my situation ...

PS: I've excluded the transplanting option, because they are a little too small. From what I've read/watched, I've understood that when the 5th node of leafs starts, it could be the time to transplant, but my pots are small though. Let me know what you think about that as well, once you've seen the images. Thanks!

Here are some pictures with my girls

This one looks like it has a mutation at the 2nd node (the top leaf in pic)

This one spouted out first, the others 1-3 days after. This one is the biggest.
I was thinking to try and transplant it in ~ 4 days. I saw 2 small roots at the bottom of the pot,
does this mean it's ready for transplanting ?
Let me know what you think about that!



Perspective/Tent view

Any suggestions are appreciated!

Hummmm my best guess is the light...I have no experience with such a small bulb but I believe this is your problem. Do you have a temp near the top of the plant? I'm guessing if you are closer than a Ft it's going to be too hot, and farther well not enough light. I rarely hear of anyone using less than a 400w for an hps bulb....if you have any cfl or straight florecent bulbs work very well in early stages.

My tent is pretty small, I've tried with 250W AGRO first, but it was going over 30 C in the tent, so I had to switch it to a 150W. The producer of the tent, on their website are saying that the size of the tent works with 150W HPS.
I have some cfl's around but it took me few good days to set the tent exactly as I've wanted, as it is right now. It's going to take some days to do the modifications, and I don't want to stress them again, that would be the last choice, so to say.

The temp at the top of the plant is ~ 25 C. The hand is also fine by raising it to that distance.
I saw a chart about MH and the distance in inch. For 150W MH, it was between 6-8 inch. I have a cooltube (edited my OP as well), which takes out the most of the heat generated by the lamp.

It was all well, but since I've watered the 2nd time, that's when I saw that something is different.
And the problem being transplanting, I would say that the roots are not that big yet, but again it's my first grow, no experience, just what I've read here and there, and I might be wrong.

I think your plants are good so far as possible, but I would transplant them into bigger pots.

Okelif said:

I think your plants are good so far as possible, but I would transplant them into bigger pots.

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Ok after further thought id say your plants are just stressed due to the increase of lumens. This happens a lot when moving lights closer or introducing new or different light intensities. You may experience this when you switch to hps for flower, and I hope that is your plan? Give it a few days and they will be back being happy. In the future try to move to close to fast but gradually.

Do not transplant yet! I would wait at least another week for that! If you want the best root system wait till the roots are starting to come out of the bottom! This makes transplanting much easier as well as filling out your roots to your pots.

Another pro tip, always transplant in to a pot 3x larger and close to the top as possible as it will settle lower with watering.

Buzz Buzzilla said:

Ok after further thought id say your plants are just stressed due to the increase of lumens. This happens a lot when moving lights closer or introducing new or different light intensities. You may experience this when you switch to hps for flower, and I hope that is your plan? Give it a few days and they will be back being happy. In the future try to move to close to fast but gradually.

Do not transplant yet! I would wait at least another week for that! If you want the best root system wait till the roots are starting to come out of the bottom! This makes transplanting much easier as well as filling out your roots to your pots.

Another pro tip, always transplant in to a pot 3x larger and close to the top as possible as it will settle lower with watering.

Click to expand...

Yes, I'll switch to hps in flowering.
About flowering ... could I keep them a short amount of time into veg before switching to flowering (my seed is autoflowering) ? I have a time constraint, and I can't do much about that, was thinking that it will be like another week for it to get from seedling to veg, and I would like to keep it in veg as short as possible, maybe 1 week - 2 weeks, even if I don't have 100% quantity at harvest, but at least have a decent quality & quantity, and harvest it by christmas. What do you think ?

I've took them a bit down, now they are 27 cm away from the light, and hope for the best !
Thanks for the tip.

I have absolutely no hands on exp with autos so maybe someone can chime in here, but from what I have read you have no control of when it flowers. I believe it counts the days not hours of darkness like most cannabis.
I would think your best bet is to go 24/0 to get a larger auto,

Transplant those things and set the lights to 20-4. They are likely rootbound.

transplant into 5 gal pots. Also are u feeding them? they look a bit hungry!! Good luck!!

hotrodharley said:

Transplant those things and set the lights to 20-4. They are likely rootbound.

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I'll be checking today if they're rootbound.
I've started with 20/4 as mentioned in the OP.

tropicalcannabispatient said:

transplant into 5 gal pots. Also are u feeding them? they look a bit hungry!! Good luck!!

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As mentioned in the OP, I think I might have overwatered them, because those sings are after the 2nd feed. I've feed them only twice, and they are 13 days old.

I've tried to transplant them today, but no luck ...
When I've tried to take the bigger plant out of the pot, it wasn't coming all at once, it was just breaking, and looked dry. Strange, since I've started the thread thinking that the problem might have been overwatering, but now, I don't know what it is really.
I've decided to keep them in the same pots for few more days. If I try to take them out now, I'm afraid I might lose them

I've noticed that on one plant, one small leaf (first node) is half yellow, and a bigger leaf as well, but not that bad as the small leaf.

PS: Like I said, I've watered them already, with no nutrients but could the problem be magnesium deficiency ?

Image attached.

pope mitre said:

I've tried to transplant them today, but no luck ...
When I've tried to take the bigger plant out of the pot, it wasn't coming all at once, it was just breaking, and looked dry. Strange, since I've started the thread thinking that the problem might have been overwatering, but now, I don't know what it is really.
I've decided to keep them in the same pots for few more days. If I try to take them out now, I'm afraid I might lose them

I've noticed that on one plant, one small leaf (first node) is half yellow, and a bigger leaf as well, but not that bad as the small leaf.

PS: Like I said, I've watered them already, with no nutrients but could the problem be magnesium deficiency ?

Image attached.

Click to expand...

Not strange at all...they symptoms of for over watering and underwater ing look the same so don't feel bad...most people do a lift test to judge their watering needs.
Also the Lowe leaves yellowing are a sign of N def, as for the other leave looks like new growth to me?

Buzz Buzzilla said:

Not strange at all...they symptoms of for over watering and underwater ing look the same so don't feel bad...most people do a lift test to judge their watering needs.
Also the Lowe leaves yellowing are a sign of N def, as for the other leave looks like new growth to me?

Click to expand...

I did the lifting as well, and indeed the pots were light.
I have bio thrive bloom and grow from general organics, I'll mix the nutrients with the next watering, when the pots are lighter. Should I start the feed before or after transplant, what do you think ?
My EC meter shows 0.0 with alk three measuring units, ppm500, ppm700 and ec. So, there is really nothing in the water, shouldn't it be over 0 ?
Thanks

Looks like the problem was underwatering after all.
Last night, they got back to normal, like nothing happen.
All good now.

Thanks to everybody for their suggestions!