Having a bad start with seedlings

This is my first start from seed indoors.
Started 2 BB, 2 PH, and 1 SK from ILGM mix pack. All seeds sprouted and placed in rapid rooters. Started 10/24. Plants are 26 days old and hurting pretty bad. Initially transplanted in Fox Farm Ocean Forest soil. Thought that might be too hot for seedlings and started to see burning of leaves. Watered probably too aggressively as well. So I had some Coco and transplanted some of the plants in Coco. After a few days of the plants going south. Also kept watering to a minimum with finger test in soil. I have a high grow 1000w LED that I initially put at about 12” from plants in veg only mode. Thinking that I was maybe getting light burn, I moved up to 24” and it’s now at 36”. Started at 18/6 and dropped recently to 14/8. What is growing is not stretching. Grow tent is 4x8’, temp-75F constant with heater. RH-40%. Since plants didn’t look like they were going to make it I started a few more seeds. This time in rapid rooter with Coco. Watered with mister. Water is 6.5ph. The new seedlings seemed to be yellowing at the tips as well. Not sure if the lights are too strong but it looks like Light burn. See attached pics. Any support is appreciated

Are you in pure coco? Have you added any fertilizers to the coco yet? Pure coco is barren of nutrients.

Water and water/nute solution for coco needs to be pH’d to 5.8, and it needs to be frequently given, unlike soil. For your established plants, every other day, some recommend daily.

Don;t worry about the stretching, that will come, it’s working on its roots and first leaves, right now.

Here’s a support ticket. Filling it out thoroughly allows the experts on this site to triage yor situation if you can fill it out. If you don’t know the answer - that’s OK - just say so.
Strain; Type, Bag seed, or NA:

Age from sprout:
Age from flower:

Soil in pots, Hydroponic, or Coco?

How often do I water and how do I determine when to water:

PH and TDS of runoff or solution in reservoir?

What is strength of nutrient mix? EC, or TDS.

Indoor or Outdoor:

Room size:

Light system, size, height from plants:

Temps; Day, Night:

Humidity; Day, Night:

Ventilation system; Yes, No, Size:

AC, Humidifier, De-humidifier:

Co2; Yes, No:

Any other info you think is pertinent:

Strain; Type, Bag seed, or NA: ILGM, BB, P. Haze, Straw. Kush

Age from sprout: 26days
Age from flower:man

Soil in pots, Hydroponic, or Coco? FF Ocean Forest, Coco

How often do I water and how do I determine when to water: Sparingly, mist and water

PH and TDS of runoff or solution in reservoir? Maybe

What is strength of nutrient mix? EC, or TDS. Maybe

Indoor or Outdoor:indoor

Room size:4’x8’

Light system, size, height from plants: At this time 1) HiGROW 1000w LED on veg only

Temps; Day, Night: 75 constant

Humidity; Day, Night: 40-45%

Ventilation system; Yes, No, Size: Fans

AC, Humidifier, De-humidifier: no

Co2; Yes, No: no

Any other info you think is pertinent:

PH n PPM Meter set is critical. Paper strips and colored PH tests are worthless.

$20 online…

Are you aware there is a free grow download here? It’s good solid information for first time growers.

Yes. I have reviewed.

Plainly put…those poor little plants are burned, stunted and trashed beyond salvation.

Dunno what all you did, BUT, it ain’t working at all!

Study, ask questions, read…read some more…understand…THEN get a ph n ppm meter set.

AND…try again. It’s a learning process. Most of what we share and offer to newbies…is the same stuff we did as we learned. yeah, killed alot more than I have ever harvested.
BUT…I remembered, listened, read, read some more…then I was able to grow some fine healthy Ladies that keep me smiling and growing.

Best Wishes…:cowboy_hat_face::vulcan_salute::v:

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Thank you. I have only grown from clones and outdoors with good success. I have a Ph meter and have been watering at 6.5 plus or minus a few tenths. Also used a declorinator. I have a TDS meter as well. At the seedling stage I was not very concerned about TDS since I was only using water.

Soil ph is off by a mile. Flush the plants with 3x the pot size in water 6.3 - 6.7 range. Don’t water again until the pot is pretty dry an inch down, then water with 6.5 and they should be fine. NO nutrients until at least 4 nodes are growing @Maximus50. Also make sure your water is actually dechlorinated. Let it sit for 3 days

Since you have NOT been using nutes…then it’s a over fertilized growing media.

IF you have to use prefertilized media…mix in a lot of NON-FERTILIZED media.

Measuring the solution before and after it runs tru the media tells what the PH n PPM are.

Yes my friend t5 light is what you need for shur all my babies love that light untill that r about a foot then big boy lights

Thanks. I’ll give that a try. I had them in Rapid rooters and some coco so I know it’s not nute burn.

@Maximus50

Until those things are limp and rotting on the soil, it is not too late.

If you are in coco, the pH of your water needs to be 5.8. Are you using a digital pH and ppm meters like these two?
https://www.amazon.com/gp/slredirect/picassoRedirect.html/ref=pa_sp_atf_aps_sr_pg1_1?ie=UTF8&adId=A098423429JFMRJPVVZDQ&url=https%3A%2F%2Fwww.amazon.com%2FPancellent-Quality-Measurement-Resolution-Accuracy%2Fdp%2FB075GH8D1W%2Fref%3Dsr_1_1_sspa%3Fie%3DUTF8%26qid%3D1542679362%26sr%3D8-1-spons%26keywords%3Dph%2Bppm%2Bmeter%26psc%3D1&qualifier=1542679362&id=3407214988854307&widgetName=sp_atf

A few other things:
pH up and down (it sounds like you may have these already?):
https://www.amazon.com/Hydroponic-pH-Down-Control-Kit/dp/B00TYW6Q58/ref=sr_1_4?s=lawn-garden&ie=UTF8&qid=1542679463&sr=1-4&keywords=ph+up+and+down

and reference solution so you know you pH meter is:
https://www.amazon.com/General-Hydroponics-7-0-Calibration-Solution/dp/B001D0CKYK/ref=sr_1_2?ie=UTF8&qid=1542679515&sr=8-2&keywords=7.0+calibration+solution

When you moved the plant from the Ocean Forest to the Coco, did you completely rinse off the roots and set them in the coco, or did you transplant it into the coco with the ocean forest?

The little guys that started in the coco are going to get hungry soon, if not already. What kind of nutrients do you have lined up?

I’ve got everything as far as water sampling goes. Digital ph and tds meters. I’ve done so many things to these seedlings in the past few weeks. I did not rinse the roots, however they were started in Rapid Rooters and most of the root bed is in the RR. Actually the one plant that looks like it might make it: the 2nd picture above was never taken out of the FF Ocean Forest. What is puzzling to me is picture 3 is a new seedling that was started in a RR a couple weeks ago and put in Coco and it looks like it’s starting to get burnt tips. So the only common denominator of the burnt leaves seems to be the lights which are now about 28” from the plants. I was using a HiGROW LED 1000w light that was real close to the seedlings at first in veg mode only. Seems like the lights are the issue. I’ve tried to take out all other variables. I have a T5 lamp and plenty of seeds and plenty of space so trial and error will go forward until I identify the issue.

I see you have a meter for ph. Have you calibrated your ph pen? They get out of calibration rather often if its a cheaper ph pen. And coco ph is 5.6 to 6.0 for best results. You say they arent burnt, they honestly look fried. Are you misting them with water while lights are on? That can cause them to look burnt. Also if they are 26 days old. They should be getting nutes in small doses.
They honestly look like mine did when i used a cheaper coco. Which leads .me to believe your ph is outta wack. Get some calibration solution and some 7.0 reference solution. And make sure your ph pen is accurate. I would start with a flush once you get everything figured out just to get any thing thats not good out of the coco and to get ph under control. Once you have ph stabil you should start to see some new growth

Thanks. As I have posted previously. I’m all over the place with these plants. I narrowed it down to 3 issues.

  1. Excessive Lighting
  2. Initial Overwatering
  3. Too hot a soil to start with. FF Ocean Forest

So I had transplanted all but 1 into Coco since I had some. That should have eliminated #3.
I reduced my water regiment and that should have taken care of #2.
I initially had lights on 24 hrs about 12” from seedlings. Then experimented with various heights and times. So I am currently at 18/6 at about 30”.
Started new batch of seeds about 2 weeks ago. They came up and are starting to what looks like the same burning on tips of leaves. Currently in Rapid Rooters. Pic 3 above. I think the lighting is too strong for them. Trial and error until I figure it out.

By the way a have a fairly expensive PH meter $160 bucks and calibrated according to manf. Recommendations. Cal at 7 and 4 with solution

Great - the one in Ocean Forest needs to be watered at a pH of 6.5. Those that use it say it does not need any nutrients until flowering.

The ones in coco need to be at 5.8pH and they need food. Are you adding nutrients, if so what dose? Coco needs more water, and when roots are established should be watered frequently, I water every other day 1/4 dose.

When you water, measure the runoff pH and TDS for each plant. The one in ocean forest should be between 6.3 and 6.8. The cocos should be around 5.5 to 6.1. The TDS for the ocean forest will probably be higher than the coco.

Good luck!

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Thanks. Will do.

Don’t give up on almost dead plants. I had two recently that have come back from the dead after a good flush and backing off the lights.

Stem rot


After she came back
Now

I haven’t ditched them yet. As long as there is some green left in them I’ll let them go