First time growing

First of all sorry for the quality of the pictures, from week 4 i have better pictures. this is my first time growing, so i think i´m making mistakes but that´s the way you learn. i germinated in jiffy pellets, it took 5 days till i could the sprout, then i put them in a big container (11 liters) i did not have smaller containers and i read that theres no problem putting them in a big container except that it could grow slower. One thing i noticed is that in 1 of the 4 plants the shell get stucked and i was not able to see the cotyledons but i put it under the light because my other three plants were ready for that.