Hi, newb with first time grow

Hi, ive attached some pics of my setup with first time, grow.
im using a 400w light in a space of approximately 1 meter x 60 cms x 2 meters tall and have a fan blowing at during lighting times on 18-6.
Water them every other day and use babby bio nutes every other watering npk 10.6-1.9-1.4.
The setup:


Recently re potteed them all in bigger pots and look like im having a few problems.
1. some lower leaves look weak and yellowish

2. some leaves curling

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3. some leaves have dead yellow patches and i have noticed that some leaves have just started to get white spots, pics arent the best but they are there

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Any help much appreciated, Thanks

i think maybe its the camera with the HPS light but I do not really see a problem, but the whole photo looks a bit HPS yellow.

when in doupt dont fertilize more.

Welcome to RIU

Maybe that tin foil is creating hot spots? Its hard to see with the picture lighting. Plz take a few shots away from the lighting.
The droopiness could be over or under watering

they look ok. mine do the same thingit could just be to much heat or not enough water