Sweet tooth happy, gelato is not

[Stoned_Canuck]

Hey everyone, so i got 4 seeds and one is not happy at All. Sweet tooth are thriving and one gelato Is doing good but the other gelato is not, there all 2.5 weeks old. I started the seeds in a 50/50 blend of promix hp and organic potting mix. Theyve all been getting 24/7 light from my Led sunblaster light tube. I've been giving them bottled water (I know not the best but I didn't have a ph pen) i bought ph strip yesterday and its been 6.0 going in and 5.8 run off of all sonits not a ph issue. I gave them a 1/2 teaspoon of. Gia green 4-4-4 and a 1/2 tablespoon of worm castings at week two. The temp. Was a constant 20 ° and Rh is I'd say 45. I've noticed this issue even when it was a week old thinking it was heat stress but it's never had high heat or too close. To this. Light bevause this light is ment for seedlings. The new growth kinda on the happy side on the pissed off looking girl. Any help is greatly appreciated. Thanks growmies

 

[PurpleLurple]

I have some Critical Mass low thc high CBD that I got from ILGM and looked like your bottom left plant. These were sown directly in soil outdoors and after they sprouted we had an early 94 plus degree day and I did not shade them. Maybe that had something to do with it but they are both fine now. I did nothing special except on more recent hot days I shade them from hottest part of the day.