Two plants - identical environment/feed - one has leaf damage

5 weeks old. This looks like either potassium def or overfeeding. It's a white widow, which I understand to be finicky. The NL is thriving w/ zero issues or damage.

The WW....has this leaf damage. Please advise.

Organic soil. Light feed overall - issue started after a fish meal feed.


Thank you guys for your time.

Fish meal is a hot fertiliser and I think its burning the WW or possibly throwing PH out of line.

You answered your own question when you asked it by the way. The plants aren't identical, dont treat them as such.

The WW may not have been ready for a feed,. Try and get a couple more pics up and hopefully someone will come along who can tell you exactly what went wrong.

What was the NPK of the fish meal and how much did you use?

Do you know your runoff pH and PPM?