Hey there, not sure if you know or not but I am growing the same strain. For one it says that autos thrive on an 18/6 light schedule. That’s what I’ve done just under T5 bulbs until I moved them outside today. They have grown aggressively. Also I’ve really heard mixed reviews on rockwool cubes and autos. Or suffocating them and whatnot. The seedling appears overwatered but I would actually wonder about the rockwool cube and possibly not getting enough oxygen. Hope that helps.
like