New Grower My (first) rubbermaid stealth grow journal!

[Eschatos]

I don't know, man, could it be they didn't like the soil?? 92 F sounds like a lot, overwatering might helped, too. How to save them? I would put some dry soil around them to suck some moisture off if it's still dump. Keep temps at ~75 and hope for the best. Keep in mind seedlings don't like intense light either. Somebody more experienced should hop in and help some more too!

 

[Mr Piggy]

Is your peat moss amended? Just plain peat is NOT potting soil and your plants will die in it.
92 is way too hot, this will also bake your seedlings. Try to get it down to 75-80 if you can.
When I water I do it heavily so all the medium is thoroughly soaked. The way to tell when it's time to water again is your pots will feel very light when you lift them.

 

[Northern Grower]

You'll also want to get some perlite, for a better soil mix. Plain peat will compact down and leave no oxygen in the soil for the roots.

Are you getting your soil from a garden store? Try to find promix, or sunshine mix. They work good for cannabis right out of the bag. You'll need some kind of feed still, those don't have nutes in the soil.

 

[codebreaker1003]

Allright ill get some pro mix for sure! heres the better pics, i stood one back up and fixed its leaves, I'm gonna take out my cfl's and invest in a couple t5's

 

[codebreaker1003]

The soil i got was still Miracle grow but it had barely any nutrients, and was potting soil but consisted of mainly spagous peat moss... i don't think it was the soil, I just realized the 3 CFL's i had in there were an inch from the plants for the last 2 days... explains everything! it burnt up the plants and evaporated all their water! i took the cfl's out and I'm either ordering t5's or a nice LED light tomorrow. Anyone know if an extra 2 bulb T5 would give enough light for a full grow of these guys? or should i try to get enough money for a backstair light?

 

[HomieHogleg]

Miricle grow potting mix, has enough nutes to kill any seedling, and for sure autoflower seedlings. Even their seedling mix is too hot.

HomieHogleg

 

[Mr Piggy]

I think what you have is a ventilation issue. Does your axial fan suck air out of the box? if it's just circulating air inside not only are you not getting air for your plants to breathe, but you're just pushing around stale hot air like a convection oven. Another thing to consider is your plants will outgrow that little tub in no time. Some people stack their tubs for more headroom. I'm gonna link you to a guy's grow that goes into the ventilation in detail. He's a handy guy that will save you a buck as well.
https://www.icmag.com/ic/showthread.php?t=111902&page=2

Page two post number 28 is where he goes into detail about his high performance R2D2 rubbermaid unit. He even shows you how to build a cheap carbon filter.

Just so you know those t5s will be just as hot as the cfls. if you only have three cfls in there and you're cooking them it's not your lighting that's the issue.

 

[Mr Piggy]

TBH when I first started growing I sprouted and grew seedlings in MG organic soil that I had amended with a tiny amount of nutes and they were fine. A few got a tiny bit singed but overall it turned out okay. I'll definitely never use their potting soil again but it works in a pinch.

 

[codebreaker1003]

I do have the computer fan blowing the air out, I'm adding another fan to blow air out of the room too. If you check the pics that are a up there a ways ^, you'll see where i moved the box. The new spot has more vertical space... And since i took the cfl's out the box temp has been at a constant 75*F which I'm pretty sure is good. Also, since i had no other choice, i moved them back to the normal MG soil, and one of them is coming back to life! Im afraid the other was too far gone but I'm just gonna start a new one in its spot
Thanks for the help !!, Im ordering a new 4lamp T5HO fixture from HTGsupply, i like T5's, they really lowered the temp of my box and they're not bad for a beginner grower like myself. My next grow will be much more calculated and precise lol not so ghetto rigged!

 

[Mr Piggy]

Okay, just remember that four lamp fixture will bring your temps back up, it will be just as hot as the cfls.