Dark spots in center of seedling.

[Sauce]

12oz cup
Coco/perlite
Sun/440 clw 440@30 inches
Ro water
5ml/g Magic cal
1/4 tsp/g(donno ml) Gh rapid root
15ml/g ful-power bioag
Steel city blues


Hello been a while since I done an autoflower. I have an issue never ran into or seen. Either way will let it grow out but with the picture attached you'll see in the center there's a dark blacking going on. Also with auto flower in coco, I can't remember if you are supposed to wait till a few nodes or feed right away.

Thanks for any ideas!

If that's not a good enough picture I'll get a better one. I have a very slight yellow on the tips. No other nutes have been added but what I stated. I don't think I added too much please let me know.

Thanks.

 

[Waira]

:smoking: --- no worries there bro', that's some natural reddish coloring common in early growth on seedlings,... coco is almost devoid of nutrition, so you should start nute's now, at about 20% strength at first... coco is a peculiar medium to grow in, having unusual CEC properties involving Ca, K in particular, and can't be treated like soil at all! It's entirely different on many levels.. best to have coco specific nute's if this is new to you,...

 

[Sauce]

Nah only new to growing an auto in it. I added the perlite for better drainage and more air oxygen to the roots. I'm using general hydroponics s full line, was going to do extreme light light dose when it got to 5th node but I'll start next watering.

Thanks i don't have a redish(atlest doesn't look to me) more dark or black. But yeah first time I ever had that just wanted to be sure as this is the first time I am using ful-power.

I'm two years in more or less started on here with all your guys wonderful help. But I do photos more wanted to do an autos I had from mephisto genetics when they started to come out with seeds. Not a pro but not a full beginner

Thanks again!

 

[Waira]

Cheers mate! yeah, sometimes that color burnishing (can be purple-ish) is a response to strong light, the pigments protect the tender tissues and chlorophyll, plus color is in her genes-- SCB is a beauty in bloom!

 

[Sauce]

Thank you, you guys are just as helpful as before