not really lol. the first two weeks are spent building a solid root system. they will pick up pace soon.that plant is super stunted
it just looks genetic to me. is that biobizz soil? at the end of the day if the ph is good and they are growing then you're all good to go.
Ta for the input...it's a 400w HPS, the temp is on average 75 and RH is around 50%. The pH is 6.9/7 (I have yet to measure it fully and adequately). What do you think??growing under a 600w hps?
it looks like it`s hot and humidity too low for vegging,try and change both see what happens if it continues severely and it`s disturbing the plant`s growth lower temp and add something to humidify the air...
or the ph is not right and the plant is missing some microelements.