NiceHairJustincommentedweek 35 years ago
Hey man that looks more like light damage if its not a defiency but it could be nothing too.... Mine are never really as dark as your first set of leaves. I think they look fine and its just new healthy growth. I know your lights 18cm but you may have to move it to 20 or more. Some LEDs are stronger than others. I have my lights 2 to 4 inches higher than then recommended specs. Its kind of like the nutes. Err on the safe side. Anyways, try not to do too many fixes at once or you wont know what worked! Looks like a good amount of growth this week though. Theyll take off now brother
Edit: i think theyre fine and its just healthy new rooted growth... If they get worse this week then update us and keep searching for answers. MJ is pretty tough and for soil you'll want higher pH like 6.8 to 6.3
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