Dawn soap hurt plants?

I am in 5th week of flower. Over the course of the grow, i have used 1 drop per gallon of Dawn dishwashing soap as a wetting agent (what i now realize also has a bleach alternative and is antibacterial), added to my nute solution for soil.

Most of my fan leaves are now yellowing. I have heard it is normal to have some leaf yellowing during flower....but MOST of my fans are yellowing.

I have had my ups and downs of nute burn, but this is complete, even leaf yellowing.

So my question is, (of course i will never use Dawn again, I will use WetBetty or similar), even tho it is biodegradable, wouldn't an antibac kill beneficial organisms in the soil?

How worried should i be about the loss of good bacteria in the soil. Did i ruin my crop? Is the yellowing possibly related to the soap? I have plenty of other plants not in flower that do not show the yellowing. Most of my plants look very healthy except for all the yellow.

Is your plant getting any Nitrogen? You say 5 weeks of flowering, is that actual flower time or 12/12 light time?

if its speckeled yellowing then its from your spray but if its all yellowing then its nitrogen deff

serapis: 5 weeks in 12/12.
z4qqqbs: i did not spray, i added to the nutes that i water with.

Start your flowering time from the time you see pistills not from 12/12