Yellowing/dying on tips of bottom leaves. 1st grow please help.

[DjDonkeypunch]

Hi this is my 1st grow. Plants are 14 days old. Today I noticed my seedsman Northern lights auto has some yellowing/browning on the tips of the bottom leaves. The other is plant is Dutch passion auto Mazar. This one has some slight curling on the bottom leaves. I have 5 gallon fabric pots with Natures living soil for autoflowers on the bottom 1/3 and filled with OF the rest of the way. Temps have never gotten above 30c. My humidity is a low at 30%. I have been watering with plain tap water every 3 days. My lights are 2x Kingbrite 240W Samsung LM301H mix red Epistar 660nm UV IR quantum. Any help would be greatly appreciated. Ty

 

[Jtsmoker]

Looks like you need some nitrogen Cal mag and micro nutrients to easy on it

 

[BirDMan420]

Whats your pH? Do you dechlorinate the water at all? But you might want to get that humidity up. Looks stressed from heat. Put a wet towel in there and have the fan blowing on it or invest in a small humidifier and hook it up to that inkbird they work wonders! I also second with the N

 

[DjDonkeypunch]

I haven't checked ph cause I read somewhere else that I wouldn't need to ph the water if I used a living soil and I was tryi g to make things as easy and organic as I could for my 1st grow. I just bought a digital ph tester and some ph up+down from AZ and should be here tomorrow. Excuse my ignorance but I never read anything about dechorinate water so I obviously have not done that. I do fill a 5 gallon bucket with water and let it sit for a day or 2 before I water.

 

[GreenMonkeyGrows]

I used Nature's Living Soil this year as well. Defo has cal-mag issues. Add some to your waterings and you should be ok. Other than that great stuff. And you know this by the smell. Lol