New Grower First Grow - White Dwarf Autofem - Indoors

[The Squid]

That sounds just like mine. I first thought N but it would be weird at what was Day 7 for me. Maybe day 11, because I know that Muddy starts on light nutes on Day 12 depending on how they look. So I asked but mine was said to be bleaching since it started from the center. He'll know what's up, I made sure he will come by as soon as he can.

 

[FooManBlue]

That sounds just like mine. I first thought N but it would be weird at what was Day 7 for me. Maybe day 11, because I know that Muddy starts on light nutes on Day 12 depending on how they look. So I asked but mine was said to be bleaching since it started from the center. He'll know what's up, I made sure he will come by as soon as he can.

Awesome! I'm in great hands, and I damn well appreciate it. Thanks again, man.

 

[Hugo]

Hey Foo,

Welcome to AFN. could you post some pictures?

 

[The Squid]

Awesome! I'm in great hands, and I damn well appreciate it. Thanks again, man.

Anytime man.

 

[FooManBlue]

Just checked them again, and they appear to be a little better. I work from home, so I can check them often. I'll bet you're right, squidherb - probably had to do with the lights being too close to young seedlings. Will keep a close eye on them, and give them a good drink tonight.

 

[The Squid]

Sounds good, mate.

 

[FooManBlue]

Hey Foo,

Welcome to AFN. could you post some pictures?

Thanks for the welcome, Hugo. Posted some just over 24 hours ago, but will post more in a little bit, after i've wrapped up my work day. Pretty much the same as yesterday, only the 2nd set of true leaves are a little bigger. I snapped some new pics a few hours ago, but the yellowish hue wasn't apparent in the photos, so I didn't bother to upload them.

 

[Hugo]

Oh! On the first post of the thread. My bad.

If they look like that, they're fine man

 

[FooManBlue]

Had been exactly 3 days since last watering, and dry to first knuckle, so I gave each plant 2/3 cup of ph'd (6.24) bubble shortly after end of four hour lights off period. Generated runoff, which measured 6.30. They seemed to like that - looking strong, perky. Not much (if any) vertical growth the past 48 hours - tallest two are about 1 and 3/8", and the 3rd plant is short of 1" (but looking healthy). Could this be due to genetics? Need to research that. During lights off, temp: 68.9F, RH: 49, and one hour after lights on, temp: 73.9F, RH: 40. Maintained light source at 250w MH 4k set 18" above top of plants.

Tentative plan is to replant in 3gal. smart pots in 3 days on Monday evening, which will be at 14 days from seed sown directly to soil, and water again with ph'd water with Microbe Brew. May also swap 4k MH for 6.4 MH at that time.

 

[Muddy]

Yes, it's quite possible you're exhausted the small amount of soil in those cups. If the pale color is consistent throughout the whole leaf it could be a lack of N. If it's spotty it might now be. The ammonia mix is a foliar spray, so should be sprayed directly on both sides of the leaves. Do this once a day for 2 or 3 days. And yes, that would be in addition to your regular feeds.

Thank you, Muddy! I raised the light to 18" above plants last night, but I think I will stay with the 250w setting on my ballast for now. Have been able to keep a steady temp=74.3F, RH=39 so far during "lights on", and temp=69.1F, RH=49 during "lights out". I have the gear to exhaust heat and odor, but have been doing fine with passive air to this point.

I did notice that my seedlings appeared less green, with perhaps a yellowish hue, during the past 20 hours; otherwise, they look healthy. I took pics today, but have not uploaded/posted them here because the yellowish hue wasn't discernible in the pics. Have been following the thread linked below, and took note of your advice to Animal about nitrogen deficiency. I suspect this my be the case with my seedlings, as they've been in the 16oz. party cups for 11 days now, and may have consumed all the nutrients in my light starter mix (80% LW, 20% vermiculite).

https://www.autoflower.org/f44/long-time-toker-first-time-grower-7797-2.html

So I am considering following the advice you gave about spraying the seedlings with 1 part household ammonia to 10 parts ph'd water for 3 days. Have a few questions about that:

1. Should I spray directly onto the seedlings or onto the soil surface?
2. One spray, two, three,...?
3. My seedlings are due for a watering tonight. Should I spray them in addition to their scheduled watering?

I plan on feeding them just ph-balanced bubble water tonight. I last fed them 3 days ago with ph-balance bubble water mixed with Microbe Brew (1/2 teaspoon per gallon), and plan on feeding them this mix (w/Microbe Brew) in another 3 days when I transplant them to the 3gal. smart pots (at 14 days, from seed sown in soil). Sound right?