Over watering??

[Matt308]

Hi and thank you for your input, I’m using ph meter and calibration has been done recently, I have yet to use any nutrients, I’m using pro mix organic soil…iv orderd some ph down as I can’t get it in my town, iv been watering with tap water that’s about 6.7ph…I only water when they feel light/dry my humidity was little low for a while but I have it about 60% lately…Temps about 80…