Got a sick girl here...

Craic lads,

Wondering if anyone can help with what is causing my AK to be sick, she is an Auto AK Passion and is around 6 weeks from seed and flowering. As the pictures leaves are yellow/brown, pointing all downwards.

Other plants are fine they are Jack Herrer and Notorious White.

Lighting is 24/0 , grow tent 4 x 4 , have a fan circulating the air , carbon filter/extraction , temps are between 23' - 26 degree's and lighting is a 400 watt HPS. Watering every 2-3 days , the AK soil gets a lot drier than the rest though doesn't hold the water as well. I'm feeding baby bio for nutes every 3rd watering.

Any help appreciated.

I think it looks like too much food, cause your leaves are dark green and curling over. Burning could be from too much food and low Ca.

Looks like you have some good things going on: the light, tent, fan and exhaust are good. Some of those plants are way too young for nutes.The soil in the plant bottom left looks different than the rest..no visible perlite and the texture looks different..maybe just drier like you say. You realize that there was probably a nutrient charge in your potting soil. Combine that with giving nutes to the plants too soon and you got trouble. The other plants are sick too. Stop or at least cut back your feeding until they ask for it

Auto's tend to be nutrient fussy like Sativa's. Feed accordingly.
NC is correct. Your overfeeding all of them.

Thanks ,

I haven't fed the smaller plants any nutes yet , they are only 2 - 3 weeks old. Only the two on the left have gotten them.

Going to flush both of them anyway , higher the light up , adjust the fan and go to 20/4 in stead of 24/0 to give a heat rest and see if this helps. The AK hasn't given me an easy time since seed it's always been...tempermental. Both strains are also Sativa dominant unlike the two smaller Jack Herrers.