Nice start and great choice as a 1st grow. soon as she is sprouted and ready for transplant , use her final pot as autos are very sensitive and do not do well with repotting. Bigger pot , bigger plant in general so about 20L min but a 30L would be even better. They grow very very quickly once settled , be prepared for any training you fancy doing ( to get the best result from her) and keep some calmag handy as led does leech cal mag from the plant. As your in soil , an organic calmag would be a good option. Until you see 4 sets of real leaves , just keep using water only too. They cant really take nutes until around that point.. Water a little and often and do it in an outward spiral to encourage new roots to go searching. Once potted up , keep the same watering routine initially. Once they get growing you can then water from the outside edges inwards. This will churn the soil around the rootball gently , bringing much appreciated oxygen to the rhizosphere ( rootball and life within) as the water travels through the pot sucking it behind it. If you need any help , please dont hesitate to drop a message or post on my journal and I will happily walk with you if needed for extra eyes. Welcome to grow diaries , good luck
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