I'm a new grower and I really could use some advice from experts! Thanks

[Vipertyui0p]

Hello everyone this is actually my first time I do grow some and I need some advice about my seedlings
They were fine the first week but suddenly I did see some weird things like yellowing leaves . Information about my grow room:
Soil : peat moss
Strain : unknown
Temperature : in room is 90 . In the grow box it's 100
At night when I turn AC on its 83 room / grow box 87
It's high temperature I know but where I live it's hot here
Light : : 5 CFLs equals 125 watts and i recently changed two bulbs(pictures included)
Air : two CPU fans one intake the other is opposite and recently changed the intake with a bigger one
also Small fan blowing on bulbs
I'm new here and I did use all the resources that I have to do this but looks like I could use some advice from experts
Here some photos when they were 1 week old to 2 weeks and a half
also the bulbs pictures



thats the peat moss soil

this is how they used to be:

changed to these:

seedling A (10 days old)

Seedling B

Seedling C

they were fine but suddnly they turned to this ! (two weeks old)

A

B

C

they are yellowing and have some slow growth , i think its cause of the heat maybe!

 

[CatnipTC]

Re: im a new grower and i really could use some advice from experts! Thanks

I'm not an expert but First thing you need to do is try to get that heat down. I've had several plants start out yellow they just needed a little time to turn fully green

 

[Vipertyui0p]

Re: im a new grower and i really could use some advice from experts! Thanks

I'm not an expert but First thing you need to do is try to get that heat down. I've had several plants start out yellow they just needed a little time to turn fully green

Thanks for replying
what i did is i switched back to CFL and i did put the fan directly on the bulbs. hope this helps

 

[Young Yoda]

Re: im a new grower and i really could use some advice from experts! Thanks

What Catnip said.. Do everything you can to get the temp down, it will become more of a problem later. Also, overwatering can cause yellowing if that soil too wet. But the leaves would start to droop, so I don't think so.

 

[ewilan947]

Re: im a new grower and i really could use some advice from experts! Thanks

hey dropping by !
first try to keep white cfl's they are " better " for growing then the warm bulbs.
second like young yoda said temps + don't over water.
next time you start seedling try to keep them in plastic cups or a small container so they suck up all the water and nutes easier
it also helps the roots grow into a nice big chunk. and more roots you have more the plant absorbs
have you got any plans for the grow or just letting things go there way?
what is the available flowering space you have you should consider it in your growth.
you don't want to end up cutting a plant in half cause you don't have any space left.

cheers

 

[photos]

Re: im a new grower and i really could use some advice from experts! Thanks

if the ( the tiny oval shaped first leaves thst are unserrated on edges)start to yellow first then you start to feed .

also are they in straight peat moss ?

 

[Weaselcracker]

Re: im a new grower and i really could use some advice from experts! Thanks

Peat moss is very acidic and is usually mixed with dolomite lime to bring it close to 7. If I'm reading the label right- it says the ph is 4. I'm not 100% sure of that's what they are saying. Definitely could be. Do you have a ph tester? If so mix some peat with water and test the stuff after it sits overnight. Ph of peat moss varies a lot- can get as low as 3.5 which is horribly low.
I didn't post earlier here when I read it because I'm not 100% sure of the solution for you. People do try and solve low ph by digging lime into the surface. It's not something I've done personally and that's why I didn't post. If your growing medium is toxic the best bet may be to repot into a better medium - though that can be a delicate operation with the wee ones. That's what I would do though.
An interesting read here if you're feeling scholarly. Harmonizing Peat and Lime -

 

[Vipertyui0p]

Re: im a new grower and i really could use some advice from experts! Thanks

hey dropping by !
first try to keep white cfl's they are " better " for growing then the warm bulbs.
second like young yoda said temps + don't over water.
next time you start seedling try to keep them in plastic cups or a small container so they suck up all the water and nutes easier
it also helps the roots grow into a nice big chunk. and more roots you have more the plant absorbs
have you got any plans for the grow or just letting things go there way?
what is the available flowering space you have you should consider it in your growth.
you don't want to end up cutting a plant in half cause you don't have any space left.

cheers

Thanks ewilan947 yea i did that i replaced the bulbs its all CFLs now since they dont get that hot
and no i dont have any plan ill see where it goes i will let things go there way and about space for flowering well let them get bigger lol and im sure ill be ready for that plan by that time

 

[Vipertyui0p]

Re: im a new grower and i really could use some advice from experts! Thanks

if the ( the tiny oval shaped first leaves thst are unserrated on edges)start to yellow first then you start to feed .

also are they in straight peat moss ?

i should be feeding i know i will get them food soon and i should also reconsider using only peat moss for the next time i do it.
and also should be doing it in winter i guess since its too hot here

 

[Vipertyui0p]

Re: im a new grower and i really could use some advice from experts! Thanks

Peat moss is very acidic and is usually mixed with dolomite lime to bring it close to 7. If I'm reading the label right- it says the ph is 4. I'm not 100% sure of that's what they are saying. Definitely could be. Do you have a ph tester? If so mix some peat with water and test the stuff after it sits overnight. Ph of peat moss varies a lot- can get as low as 3.5 which is horribly low.
I didn't post earlier here when I read it because I'm not 100% sure of the solution for you. People do try and solve low ph by digging lime into the surface. It's not something I've done personally and that's why I didn't post. If your growing medium is toxic the best bet may be to repot into a better medium - though that can be a delicate operation with the wee ones. That's what I would do though.
An interesting read here if you're feeling scholarly. Harmonizing Peat and Lime -

what i did is i repot them but i did mix the peat moss with some soil from garden (like 30% soil) the other is peat moss unfortunately thats what i did find i know i should be getting better soil for them but no one sell this stuff here ill be ordering some soon i hope plus i should be getting that pH tester for sure , i want to be completely ready for the next time
ill be post new pictures for these poor seedling (photos were taken today)

First i went back to CFLs since they are better

Seedling A

Seedling B

Both under light

Seedling A has this weird look i dont know why
Seedling B has better looking leaves but the of the yellow leave has tiny hole i also dont know why lol
they both look small, sad and yellowing
PS that cable in the middle has no electricity so no worries im careful not to burn my room its for the thermometer

 

[Billyjack]

It does look like heat stress. You could feed 1/4 nutes. Any chance you could put them outside? Get some sun on them and cooler temps, 75 to 80 degrees would be nice

 

[photos]

ph water to 7 start giving light veg nutes water to 10 percent run off only water when pots are almost dry