Help... Please Save These Poor Things

There are four plants that have been veging for two months. All four plants look OK, but not great. They all seem to be growing slightly different. This is probably because they are different seeds or because they did not have proper lighting for the first two weeks. Iam going to lay out all my info and go from there. ALrighty then... All four seeds came from bags of really good stuff, but not sure what kind. I have a 100w HPS and a fan. I am also able to open my window and get fresh air circulating for at least half the day. I have been using Fox Farm grow big at 1/2 strength every other day for the last 2 weeks. I transplanted all four plants into the bigger pots yesterday. I do not know the PH or PPM. It is in new soil so I would imagine the

In plant # 1 I made the mistake of transplanting it into miracle-grow moisture control soil. This was the only plant that I put into MG the remaing 3 were transplanted into a local organic soil. (dont ask me why I did this) Now it is the only plant that is showing the extreme burn marks on the leaves. The leaves are also a bit dry and crunchy on the very tips. I am not in panic mode yet but would like to cure this problem ASAP. After I seen the burn marks I moved it back to organic soil and have backed off nutes.

Plant #2: this plant seems to be growing straight up and the leaves seem to be making a "taco" shape. Also Plants 1 and 2 were positioned closest the light so maybe this they are sun-burn?

Plant #3 This plant was actually planted about a week before the other three. It sprouted and had some immediate stretching. Now the bottom leaves are slightly yellow and growth seems to be stunted, or at least drastically behind the other 3.

Plant #4 God I hope this one is female. This one seems the healthiest. The last couple of days I have noticed that the leaves seem a little "droopy". Nothing I am too concerned about, but if this is an early sign of something I would like to catch it ASAP. I think it is because it was not in a big enough pot untill yesterday.

So Im guessing I have room for imrovement.... I want any and all advice. But if you are guessing or baked at least let me know.

These pictures are from yesterday. Plant 4 looks even more sad and "droopy" today

wats ur watering schedule??? wa kinds light are u using ??? how close are ur plants to the light how old are they have u used any ferts , nutes??? answer these questions and ill help u with wat i know of

Do u ph your water? what distance is the light from plants? how much water do u feed them?

Noob, I answered most of these questions in the orignal post. I water every day (very little water) around a half gallon for all 4 plants. Every other day I was using fox farm nutes at 1/2 strength for the last 2 weeks. I believe this was too strong for some plants. But as you can see all four plants have a different problem. I have a 100 W HPS that was too close up untill 3 days ago. No it is 6 in away.

I do not check PH. I know I want my PH around 6, does that mean I want the water that I feed it at 6 or the soil? Pretty unfamiliar about PH and PPM.

maybe a mg problem. easy to fix espom salt and water. check the faq's

how much salt/water combo per plant?

GROWFAQ c/c: Mg-deficiency is pretty common since marijuana uses lots of it and many fertilizers don't have enough of it. Mg-deficiency is easily fixed with ¼ teaspoon/gallon of Epsom salts (first powdered and dissolved in some hot water) or foliar feed at ½ teaspoon/quart. When mixing up soil, use 2 teaspoon dolomite lime per gallon of soil for Mg. Mg can get locked-up by too much Ca, Cl or ammonium nitrogen. Don't overdo Mg or you'll lock up other nutrients.

dude its nute burn your shouldnt be giving them fox farm when there that young
trust me back off on the nutes water ever other day unless soil is pretty dry and you will see great improvement.
Good luck!

also put your hand right above your plant if it feels like its over 80 back the light off. Or you could just use a thermometer.