They will need nutrients while flowering yes.
How To Use Progressive Web App aka PWA On 420 Magazine Forum
Note: This feature may not be available in some browsers.
They will need nutrients while flowering yes.
You using soil?
Looks like too much nitrogen is burning them up, figure which nutrient you're using that has the most nitrogen and back off on it.
Could be ph issue, as long as you raised the ph look for healthy new growth
When did you increase the ph level
Ok give it a couple days and see what they look like
Looks like mold to me too.
Yes . happens.