Leaves Yellowing week 3

I increased light distance, I'll wait till tomorrow and will post update

Also I have 24hr schedule

I'm using LM301B quantum board 240W and its 55cm distant from plant, I gave her yesterday CalMag and Flora Trio. https://imgur.com/a/r7xL2sF as I see maybe these two leaves are curling up a little bit I used my phone as lux meter and its 50 000 on that distance I'm thinking same that light is too much, but I did it according to this lights recommendation: https://images-na.ssl-images-amazon.com/images/I/61CT20rokyL._AC_SL1200_.jpg also I don't know how can I measure ph of soil, I only have ph meter for water, I'll order soil ph meter and will measure it in 3 days or so on reddit someone commented that its common overwatering problem and don't know how can I identify what it is. Thank you for helping

What light and wattage are you using, how far away from your seedlings is your light? Are the leave also toco-ing and curling up? Or the aeration looking extra pointed? This sounds like too much light. This causes your plant to need more P which uses more calcium and magnesium to do so , it represents itself looking like a deficiency yellowing between veins or yellow spots in later stages. Adding more nutrients will definitely burn your girls, it can be fixed by raising your lights 6 inches.

this is some kind of N deficiency bro, it's kinda lack of food but plant will have enough food in soil for 3-4 week so i advice you to check the ph of the soil, if it not right then flush it with proper PH, fluctuated ph might cause plant to not uptake nutrient. and if it hungry give her some nutes