1st grow auto flower

planted 3 seeds in peanut butter jars and put them under a t8 led tube light to sprout and on the 5th day noticed an extra plant growing with one of my other girls. Don’t know if it will survive because it is still very tiny. just transported the bigger ones into 3 gallon pots for the rest of their life. Added both 4-4-4 slow release fertizler and work casting and put them under the 600 w led . I’m not sure if 80 degreez with 45 Humidity is bad.