Yellow tips and brown spots! HELP PLEASE! :(

Hey its day 3 of my official set up and the plants are under two cfl lights 125W duel spectrum and 100w White spectrum alonside 14w LED blue and red lamp
There planted in PH 6.0 soil mixed with miracle grow soil, I water them every two days with ph 6 water and dont feed nutrients as the soil already has them.

to be honest I read a article saying the first two veg leaves turn yellow anyway and fall off if they dont get enough light as a natural process of elimination to put energy into growing upwards.


The image below shows the browning on the edge of the right leaf which is what im mainly concerned about. ~

Thanks for any advice

that looks like nute burn but should be ok just keep a eye on it

Yep, looks like very minor nute burn, nothing to worry about.

....must ... add ...epsom
...must ... use ... soil without those fert pellets in it next time

Thanks for the reply! can I ask what epsom does?