2nd grow

Depends on how big you want the plants, and how nutritious the soil is. - If you know what you're doing with fertilizers, even a 1 liter pot can work out pretty good. Tho, iif you aren't all that knowledgable on fertz, you should opt for bigger pots. 8 - 11 liter will work fine for autos, and depending on nutrition values of soil, you likely won't "need" to feed until the very end of the grow. - If you want some big photos filling your tent out as much as possible, you could use 20 liter pots.. Tho, might be a good idea to start smaller, and then repot later on as they get bigger. ^You won't fill the tent unless you top and/or do LST tho. They'll just grow tall.

Can u dim the 400w? The fluorescent for one plant can last u for a month +- of veg if u train the plant, then u maybe do a transplant, change the light and in 10 days you can switch to flower

It was underwatered

A rule of thumb: move up from the seedling pot (generally .5 or 1 liter) when the leaves are growing over the edge of the pot. In your case: definitly transplant asap. The seedling is well developped and the little 0.5 pots are no longer sufficient to support further growth.

So, if the soil is humid i don't even water and just let them expand the roots into the humid soil as it dries out, if the soil is dried at first you sould water just enough to get the bottom portion humid at most, so for a 12l you might need just 400ml to 800ml of water depending on your soil's water retention capabilities. And yeah start wet dry cicles right away, check any of my latest diaries to check how i did on the transplant if you wish to. If you don't wish to i will just say, i watered the initial pot on lets call it day 1, then transplanted on day 2, then only watered again on day 4 as the soil was still humid and my soil mix has big water retention capabilities, therefore when i watered i had to go from 75ml per plant per watering to 750ml per plant per watering, i wet the whole soil because as the roots expand they drink the water retained in the soil that is in direct contact with the roots first, and as they expand they drink the water in the soil that was not in contact with the roots, so your gonna want to have the lower portions of the pot wet so the roots feels compeled to move there. I hope it helps, keep it up, nice grow. C ya around growmie.

Hey, That appears to be calcium deficiency. Usually caused by low ph in soil. It wont be readily absorbed below 6.2. I dont see any in your feed schedule, if you're not supplying any, that will it. Cheers,

Sounds like a nutrient lock-out, or possibly toxicity, likely due to a pH imbalance. How are you measuring the pH of your soil and water? The pictures above, that is very likely what is going on, a pH nutrient lock-out. Check that runoff ph. 🤘😤

Sure looks to be. I'd be watering to run off on a girl this size. Remember overwatering is watering too frequently not really to much at one time. 🤘😤