How is my seedling looking?

[oilymichael]

Hey y’all, first time grower here and wanted some more eyes to make sure I’m not missing anything so far.

My first successful seed germinated 4 days ago, I planted it 3 days ago, and today the cotyledons started opening. (See photo)

I’ve got it in a solo cup in 70/30 Coco/Perlite under a bottomless gallon jug humidity dome in a 2x2 tent under a 200w led light set to 20% about 2 feet above the cup.

Temp is 75f, RH is 75%, and vpd is around .70-.75.

I have the fox farms hydroponics trio and calmag supplement on standby, and my understanding is I need to wait until the first true leaves before adding any nutrients.

Any advice would be welcome, especially as I can’t seem to find any feeding schedules for these nutrients specific to coco.

[DabberDog]

So cute! I wanna pinch those cute little coty's. What's the strain? Auto or fem?
I will opine that you do not need a dome if the numbers you gave are for the environment they are in.
Best thing in your post was questioning when to start nutes. You answered yourself correctly. Don't give anything until the first set of real leaves show up. In coco, I will start at 25% strength nutes at about 5-7 days above soil. 50% the next. Full monty after that.
If you are using hydro nutes in coco, figure coco is hydro for dosing. Also called soilless because coco is not soil.
And fans. Don't forget fans and exhaust if you close your tent.
And CalMag. Don't forget the CalMag.

[oilymichael]

It’s a Tangie auto! Tangie was the first strain I ever bought, I figured making it the first I ever grow would be a cool full circle moment.

I should mention those readings are from the probe inside the dome, it’s on a seedling mat so the outside is more like 69-70 degrees.

Thank you for confirming, today is day 2 above the soil so I’ll keep an eye out over the next few!

By 50% the next do you mean like the next week, or next watering?

I have the hydro schedule for the FF trio, it mentions flushing three times which I’ve seen some people say to avoid so I’m puzzled there, it also has no guidance for calmag. Should that just be according to bottle directions?

I’ve got an oscillating fan on the lowest setting, and an AC Infinity 4” exhaust running on the lowest setting (with humidity and temperature triggers to kick on higher if need be).

Thanks for the advice, this community seems really cool already 🔥

[DabberDog]

Me, my plants, in my situation, the way I do things is when I see two, centimeter leaves growing out from the cotyledons, I get going with nutrients.
There are discrepancies among growers about many things. Using CalMag in coco with hydro nutes is not one of them. If you grow in coco, get some CalMag. I don't know that brand matters. It's all pretty much the same thing. In my opinion, you cannot go wrong following the manufacturers recommendations. But other people go with the website. Flushing is a discrepancy. Some do, some don't.
If you are going to follow the guidelines on the website, maybe from a tutorial, stick with that. Don't go between manufacturers recommendations and the website. If you cannot find guidance in either, come here.
When you look at tutorials, look to see if the information is for autoflowering plants or regular/feminized photoperiod.

[Bluey]

I start nutes now at an EC of around 0.3 and will be at 0.4 after another week. 0.4 is around ⅕ to ⅙ of max nutes most manufacturers recommended at maximum growth with a mature large plant. I never get to Max strength, only ¾ at most, even then it can be a fraction too much.

Measuring EC is the way to go.