Purple and Yellow querkle and PB Seedlings

Hi, running 2 week old Querkle and Pandoras Box under a 400W MH that is 3ft above the canopy. As you can see the leaves and cotyledons have been crisping up for a couple days now, with a purple sort of bruising on them. Some are curling up, others down. Sorry about the poor quality photos. Planted into Niks Mix (composted material, coco, perlite, living micro organisms, fungi and contains mineral or fertilizer additives.) Didnt see that last part about fertilizer additives when they were planted, so I'm going to assume I've made the usual newbie mistake of too hot a soil, but if you disagree please do tell. Temperature and humidity seem to be in check. Water has aquarium water conditioner added due to chloramine in water supply but I don't think this would be the problem? Water is not ph'd What is my best bet at survival?

Your fertalizer is either too hot,which means to high of nutrient ppm in your soil or you overwatered which causes your plants to get more nutes than they need and essentially burns them. When starting seedlings don't water with a cup or thick streams of water,get a spray bottle and just soak the top layer of soil til your plant stablizes itself then water from the bottom with a tray and the top with a spray bottle till your plant gets at least 12 -16 inches.