heres another thing ...your "area" of soil is small so it wouldn't take much to see a high ppm... I take a pint of mixed nutrients say it 500 ppm .... but that gets divided by 3 clones in 1 gallon fabric pots , so there just get something but not a total saturation ..... calm down loop !!!!! let her dry some...
I just got done dealing with months of over watering issues. When you are in veg, drier soil is the goal. You dont want to have to re wet the soil until needed. When you do, use a small amount of water. Just enough to give it water for the day, and not look wilted. Always trying to keep it in the dry zone. Not bone dry of course, but if its questionable. Wait a day.
Look at how your plant looks after a light watering it in 24 hours.
Then look at the plant 48-72 hours after watering.
It should be super happy looking, this is the ideal dryness you should strive to keep it in.
Wet soil bad, Ideal dryness is ideal.
When in veg, and trying to grow a root system.
Not that bubba needs my 2cents. but for guys struggling with over watering.