Im new to growing and trying to get a handle on it 
. Anyway my plants fan leaves are curling under and appear to be getting a black hue to the leaf edges. The plants are tangerine dream and cotton candy kush, im using happy frog ff, a mars hydro ts 3000 , at 24" above canopy at 50% power just starting week 5, these plants are auto’s too.this is indoor 5x5 tent. Temp at 66-72, rh at 46%-55%. Is this a nutrient deficiency? Any help is appreciated
3 Likes
Welcome to the community! Please fill out this support ticket to better help other growmies to help you out!
COPY/PASTE the below list into your forum post.
Answer these simple questions the best you can. If you aew not sure, just bring it to oue attention. We will figure it out.
- Indoor or outdoor? - size of grow?
- Otigin of seeds?
- Regular, feminized, or autoflower?
- Origin of water. PH, EC/TDS of source water?
- PH and TDS/EC of if mixed solution?
- Grow method? Soil, Soil-less, Coco, Hydro, Aquaponics. Please explain.
- Nutrients or fertilizer system used.
- What typr of lighting are you using? LED, HID (MH, CMH, HPS), or Fluorescents? Please elaborate.
- What are the temps in your growspce? Day / Night?
- What is the RH = relative humidity in your growspace? Day / Night?
- AC, Humidifier, De-humidifier?
- Do you have a Ventilation system? Size? 4", 6"?
- Co2 Yes / No?
- How long have you been growing?
- What budget have you set in order to grow successfully?
- If you grow hydro, then please explain your hydro method. DWC, R-DWC, Ebb and Flow, Or; Other? Other?
16b. Size and temperature of solution in reservoir?
Always try to upload a clear picture in white light of any issues you may have to allow the community to identify your issue.
Anything you feel would help us give you more informed advice should be included. Feel free to elaborate at the end of the survey.
Leaf curling, nutrient issue?
Marijuana Grow Support
Join up for expert help!
Leaf curling, nutrient issue?
2
/
2
Im new to growing and trying to get a handle on it . Anyway my plants fan leaves are curling under and appear to be getting a black hue to the leaf edges. The plants are tangerine dream and cotton candy kush, im using happy frog ff, a mars hydro ts 3000 , at 24" above canopy at 50% power just starting week 5, these plants are auto’s too.this is indoor 5x5 tent. Temp at 66-72, rh at 46%-55%. Is this a nutrient deficiency? Any help is appreciated
1
11h
- [
last reply
](Leaf curling, nutrient issue? - #2 by HeyJB)
9h
- 1
reply
last visit
Welcome to the community! Please fill out this support ticket to better help other growmies to help you out!
COPY/PASTE the below list into your forum post.
Answer these simple questions the best you can. If you aew not sure, just bring it to oue attention. We will figure it out.
- Indoor or outdoor? - size of grow?
- Otigin of seeds?
- Regular, feminized, or autoflower?
- Origin of water. PH, EC/TDS of source water?
- PH and TDS/EC of if mixed solution?
- Grow method? Soil, Soil-less, Coco, Hydro, Aquaponics. Please explain.
- Nutrients or fertilizer system used.
- What typr of lighting are you using? LED, HID (MH, CMH, HPS), or Fluorescents? Please elaborate.
- What are the temps in your growspce? Day / Night?
- What is the RH = relative humidity in your growspace? Day / Night?
- AC, Humidifier, De-humidifier?
- Do you have a Ventilation system? Size? 4", 6"?
- Co2 Yes / No?
- How long have you been growing?
- What budget have you set in order to grow successfully?
- If you grow hydro, then please explain your hydro method. DWC, R-DWC, Ebb and Flow, Or; Other? Other?
16b. Size and temperature of solution in reservoir?
1- indoor grow
2- seeds came from growers choice
3- autoflower
4- water is tap water(well) haven’t checked ph
5- ?? No nutrients just water
6- soil is FF happy frog in cloth 3 gallon pots
7-no nutrients- unsure what to do there
8- led mars hydro ts3000 24" above canopy at 50% power
9- temps are between 66°f- 72°f
10- RH is between 48%-55%
11 using dehumidifier set at 55%
Also have humidifier for starting plants
12- 6" ventilation system ac infinity
13- no co2
14- this is my first grow
15- budget is pretty open
16- N/A
16b- N/A
You’re going to want to get a PH pen so you PH your water. This is one of the single best investments you can buy for your grow. Cheap but very important. Need to know what it is going in and coming out so you know what adjustments to make.
After about a month the soil will be depleted of nutrients. You’ll want to buy a TDS pen so you can tell how much nutes is still in your soil and that will tell you how much to feed. Do you know what line a nutes you intend to use? Based on others feedback on this forum I would recommend Jacks 3 2 1 for ease.
4 Likes
I’ll get a ph pen and get back to you on that, your nutrient suggestion sounds good to me, i like to keep it simple😊, where can i get a ph pen?
Amazon has some good options. I wouldnt go super cheap. 60 bucks will get you a decent one. I have an apera and love it.
2 Likes
Apera 20 PH tester
Apera 60 tester
Both on Amazon
[APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy: Amazon.com: Industrial & Scientific](Amazon.com
I have a few PH testers, no all work well or reliably.
Apera 20 Ph tester Works great, fast and reliable
Vivosun PH poor design allowed for broken glass and slow reading, somewhat unreliable (broke now).
Blue labs PH digital tester, second to the Apera, but not waterproof like the Apera.
5 Likes
Sounds good, ill get back to you on ph
And hopefully can figure out what is going on appreciate the help😁
3 Likes
Good pointers from @HeyJB and @DEEPDIVERDAVE. I would ask what your watering routine is and on the days are you watering to ample run off. The run off will be what you’re checking for PH and PPMs in the medium. Most deficiencies are PH related and soil range is 6.2-6.8 with 6.5 being the sweet spot and soil must have a wet to dry cycle alternating water and feed days 
5 Likes
My routine was daily approximately a quart of water per 3 gallon pot with minimal runoff maybe half a cup, but i backed off this past week thinking i was over watering. Makes sense checking run off for nutrients was wondering how to check nutrient level, again thanx for all your help 
3 Likes
It’s best to water and let the pots dry out before you water again. Check the weight of the pot Before & After watering you will get a good feel when to water. I usually go about 3 days but it also depends on environment and size of pot. Good luck my friend ! 
3 Likes
Just wondering if you’ve got a fan closer to that one.
Appears to me to be more of a wind curl than nutes.
3 Likes
Overwatering is contributed to frequency not amount. Smaller vessels will dry sooner than larger ones and a good pointer from @kellydans on when to water or feed again. Run off should be approximately 20% of what you’re putting in and I let a cup run out before I catch a sample for testing. A TDS pen and PH pen will be needed for both run off and mixing nutrients. BlueLab makes an excellent TDS pen and Apera 20 is a great inexpensive PH pen. Each growth stage has a PPM level and deficiencies are easier to correct than toxicity but in my limited experience the PH is critical. Out of range and nutrient absorption will suffer or not happen at all
5 Likes
Funny you should ask that, as a matter of fact i have a clip on 6" ac infinity oscillating fan and that plant is the closest to it, but i do have it on low setting 3 out of 10
3 Likes
Nice catch Brother
3 Likes
No kiddin… 
2 Likes
I’ll move that fan and see if that works, i should have the tds and ph pens today I’ll check back with findings, thanx again
1 Like
Your plants look a little heavy on nitrogen to me. The leaf tips will turn downward, before the leaf gets the claw look. Too much wind looks similar but it usually comes with dried out leaf edges. Also it looks like the tips are turning down on all of the plants.
I think you should follow the watering technique from the previous post. Now that you have that ph meter. Adjust the ph on your water to 6.5 before watering. Stay with plain water until they start to look hungry before using nutrients.
Don’t overreact, like I used to do. Actually your plants look petty good for your first go at it.
4 Likes
Agreed! 
1 Like
Thanks for the advise, i will follow that. Does the pen usually come with ph adjustment drops? Never thought to check that and never used a ph pen