Window autoflower(northernlights)seedman

Indoor is a plant grown inside, generally in a tent or room with supplemented lighting. Greenhouse is a plant grown in a greenhouse. This is somewhere between the two, so I would not put it in either category.

Like Unorthodox mentioned. Download a free app for your phone and you can get a reasonable estimate. Obviously which way the window faces makes a big difference. South facing to catch the sun is best but since you have trees and snow you're not getting a whole lot of light. Add in your short number of daylight hours and you'll be needing your grow light (whatever a "extra low spektrum" light is???) especially for autoflowers that can benefit from very long daylight. I just checked and I get about 1'000 less PPFD through a dual pane window and screen than being outside which means I'm loosing over half of the light to the glass.

Hola. Nunca la he usado. Pero yo esperaria hasta la segunda semana para probarla. Ya que estamos en etapa plantula y es muy delicada como un bebe. Tambien probaria agregando a la dieta en partes pequeñan durante todo el cultivo. suerte

Well, given your conditions, it's certainly not mold - it looks like the leaves were flooded perhaps with water containing epsom salts or the oyster shells and it's residue from that... I don't think you have anything to worry about. You could take a clean, moistened tissue and try to clean the leaves off to see if the white stuff disappears... Try not to water the leaves themselves unless you're doing a foliar spray... Good luck!

Been I've no idea what lights you are using. And your girls aren't stretching tells me your light is at the strength it needs to be. 500-700ppfd should be enough for your entire veg. After she hits pre flower then turn them lights up. But as for now you can get her done on, this is just a guess 50-70% of your lights strength. You wanna keep the 100% of pre flower and so on . Good growing