8 day old autoflower NL growing in 3gal smartpots filled with a washed and rinsed coco coir/perlite. Just fed last night 1/4 strength FF nutes and 1/4 strength CalMag for the first time. It was the third time all three have been watered since I put the not germinated seeds into the coco medium. Water is always ph 5.5-6.5. I also have a humidifier filled with ph'ed water as well (not sure if that matters) to keep humidity at 65-70%.Temp is around 80 with lights on, 68-70 without lights. I have a oscillating fan to mix up the air and I placed two 1gal jugs with a yeast/sugar combo for Co2. Currently I'm using 3 light fixtures with double 60w CFL and will eventually switch to my 300w GalaxyHydro LEDs once I get control of this problem. As you can see, there is yellowing around the edges and what looks like some burnt or dead parts. The plants have never been closer than about 6 inches from the bulbs and certainly never come in contact with them. I thought nute deficiency cuz of the coco but i added 1/4 strength grow big/big bloom/CalMag last night and they look worse now. Oh, they are on a 20/4 light schedule as well. This is my first grow.
Plz help. New growth is yellow on seedlings
- Thread starter Poison16
- Start date
Resinhound
Well-Known Member
Seedling dont need nutrients for 2 weeks on average,they have food from the embryo. Or you get what you have now.A burned stunted seedling