HELP me diagnose this!! pics +rep

so i woke up this morning to find lil green spots on one of my plants, along with curling leaf tips, i tried searching but im either too high or im just missing something .. my ladies are growing under 400watt hps lamp, FFOF soil, used nutes for the first time yesterday, i water them about every other day .. oh and its day 3 of flowering!!! please help.. plus rep

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After reviewing your pics, It is my opinion that the Curling down is from excessive humidity. Do you have any kind of device to regulate the Relative Humidity in your grow room?
If not a simple dehumidifier would work. You can buy one a wal-mart or similar store.

To address the yellow spots on the plants this may be the result of ozone damage to the plants or spray application damage.

This diagnosis is just my opinion and I am by no means an expert grower. I hope my advice has provided to be useful. Good luck with your lovely ladies.

Peace

If you nuted yesterday. and found this the next day. My guess you spilled some on that area. You might want to stop watering every other day water well and let it dry. Just my penny in the pot.

If the spots where there before you added nutes. I would say the start of mag diff. the sagging could be caused by over watering,copper and pottassium diff. also first nutes added might be starting to lack some nutes.

Over watering