Do you have a fan near them? They look heart stressed to me. Those plants are too small to be lacking nutrients, you'll only make things worse with fertilizer.
The ventilation in the area isn't the greatest, I try to keep it opened up when I'm around though so that they can breathe. I raised the lights a couple of inches, they didn't feel hot but when the plants are under them for 18 hours a day it may not be helping.
they look sad, they could bounce back. u should have them in seperate puts so the roots dont fight for water and you dont need to untangle the roots to transplant. indoors right? what are you using for light? whats your cycle, and were the plants given 24/0 of light with no fresh air all weekend? that would explain this....
Yeah, it's a closet operation here, and I'll look into getting separate pots. I'm using four 4' fluorescent tubes, I want to say they're of the cool white variety but honestly I can't remember :X lol. They're on 18/6 currently, and have been for a while, workin' on the fresh air though atm.
could be heat. could be ventilation.
There looks to be a lot of perlite in that soil...maybe more perlite than soil...to me they look UNDERWATERED. You were out of town so they clearly didn't get watered right? The soil probably dries out too quickly with all that perlite...no water for a couple days and 4 plants in one container sucking up whatever they can probably means lack of water.
I just watered them and I've got some decent ventilation going now; I'll let everyone know.
Thanks for all the replies everyone! I'm glad to know it's not a nutrient issue, my head was spinning trying to diagnose. I've gotten them some decent ventilation and fresh water so hopefully they'll bounce back. Thanks again for all the help, I'll keep the tread updated as things progress