A couple questions from a first time grower, 21 days in.

Last week, I noticed I'd been giving my girls too much water, so I cut back my watering/feeding cycles. Since then, in spite of the soil still being quite moist (I picked up a moisture meter), I've noticed a few of the lower leaves, the first big ones to sprout, are curling upwards and becoming a bit crispy at the tips.

I read through a couple watering and feeding guides, but couldn't pinpoint the symptoms my plants are currently showing. Any and all help is deeply appreciated.

need pictures or we'll probably diagnose wrong and make the problem worse

what nutes are you using?
how much nutes?
how often do you feed?
what is the soil ph?
what is the nutrient mix's ph?
what grow medium are you using?

should be able to help if we can get that info.

with leaves curling up and tips dying i would say overfertilizing but it is better have all the info present to make a informed desicion but like i said tips curling up and dying is a classic over fertilization symptom good luck

1) Age Old Organics Grow 12-6-6 and General Organics Cal Mag Blend. The Age Old has zinc, boron, manganese and few other micro nutes.
2) 1/4 of the recommended use. After the initial diluting, I blend with distilled water, so the dose is extremely low.
3) I've fed three times in the past week, extremely low doses.
4) Soil PH: 6.8-7.1
5) I don't have a liquid PH meter. I need to upgrade a few tools, but I monitor the PH before and after feeding, and it may fluctuate a point up or down.
6) The medium is Fox Farm Ocean Forest

I've been using a PPM meter that has three readings: too little, ideal and too much. I've been keeping the plants between the bottom of "ideal" and the middle. Sorry for the delayed response, long day at work. Thanks for your assistance, I'm worrying a bit here. I should also mention that the leaves in question are the first ones to sprout, three pronged leaves, not the traditional fan leaf.

Sorry no pics, I'm having a hard times uploading them to the sight. I'll keep trying. Thanks again.

I found this on another forum. Also, I've been looking through numerous pages of pics on over feeding, on google images, none look similar to mine.

How long has this problem been going on? - 4 days
What STRAIN are you growing? - Wonder Woman, New York Power Diesel
What was the establishing technique? (seed or clone?) - Seed
What is the age of your plants? 21 days
How long have they been in the soil mixture they are in now? 21 days
How Tall are the plants? 5-8 inches
What PHASE (seedling, vegetative or flower) are the plants in? Vegetative
What Technique are you using? (SOG, SCROG etc) - No specific (newb, but planning on SCROG in future)
What size pots are you using? (Include how many subjects to pot) 2 gallon
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc) see above
What Nutrient's are you using? see above
How much of each nutrient are you using with how much water? see above
*Knowing the brand is very helpful*
How often are you feeding? see above
If flowering, when did you switch over to using Bloom nutrients?
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect)
What is the TDS/EC/PPM of your nutrients used? - see above
What is the pH of the "RUN-OFF"? 6.8-7.1
What method of pH test was administered? Using Strips? pH pen? ph meter
How often are you watering? - Every 3rd day (at least)
When was your last feeding and how often are you feeding? 2 days ago
What size bulb are you using? Sunmaster 1000 w HPS
What is the distance to the canopy? 4.5 feet
What is your RH Factor? (Relative Humidity) 45-59%
What is the canopy temperature? 79-85 Fahrenheit 27-33 C
What is the Day/Night Temp? (Include fluctuation range) Using light 24/7, varies on the temperature outside
What is the current Air Flow? (cfm etc.) 465 cfm
Tell us about your ventilation, intake exhaust and when its running and not running ? Exhaust, squirrel cage fan (465 cfm) always on, with an AC unit connected directly to the box to cool.
Is the fan blowing directly at plants? Yes, a box fan
Is the grow substrate constantly wet or moist? I let it dry out
Is your water HARD or SOFT?
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? distilled
Are you using water from a water softener? No
Has plant been recently pruned, cloned or pinched? No
Have any pest chemicals been used? If so what and when? No
Are plant's infected with pest's? No

Go easy on that age old,a lil goes along way.Also gardenlime is good to add to the mix. I like espoma gardenlime.Water when the pot is light during veg.During flower,water, if its dry, 4inches deep.

again we need pics!!!

Same thing's happening to my girl at 14 days; inner leaves are curling up with the edges turning a bit brown. I havent added any nutes other than what's already in the FFOF. I'm just going to wait it out and hope for the best

so if you using fox farm ocean forest and adding supplemtal fertilizer than the plants are being over feritilized. good soil such as fox farm ocean will provide all your plant needs untill it has used up all the nutes in the pot. i dont know how long it takes to use them but you will know when you bottom leaves start to slightly turn yellow when that happens then start adding fertilized water untill then just water. mtfbwy