1st GROW INDOOR

im entering the week two, im still confused about the right time to move from seedling stage to veg stage. so im just move the the two little plant with couple small leaves into pot with 30cm diameter (not sure how much volume/gal). Couple days after transplant, maybe my plant get transplant shocked that i can indicate with very slow growth almost stunt. And couple leaves starting to burnt (i dont know what its called) or become white and crisp as you can see in the picture for both of them. The cotyledon also has the big changes, first they become yellow, and now the cotyledons are ripped away. im not sure why this is happened. my speculations are. -The lamp close enough around 45cm (i use BULB LED 50W, it says 5000lumens) so im just hang in it far away as close to my tent. -transplant shocked, i read around internet and youtube about transplant shocked, but i dont know how to cure it. -nute deficiency? because im using fertilize soil that i give no nute from start till the end of 2nd week. I also record them with timelapse. and i can see very little in the video move around on my soil. so i check the soil, i found some very small something white. Its very hard to see with my eyes and i still cant identify them. maybe need some magnifying. then i also check about pest and also read about good bugs on organic fertilize. sorry for a long story. please anyone give me feedback or anything about my grow problem that i have. Really appreciate for any comment to my grow diary.