Tickaas commented7y ago
I think it's a lack of sulfur.Your pH is not optimal but okYour temp is okYou grow with led so I don't think it's burnedThe yellowing starts from the top.If it's a nitrogen deficit it's start yellowing from the bottom.You can try 1 spoon of epsom salt in 5l water... But that's just my opinion, look for further informations on this maybe it helps.i wish you and your ladys the best✌️
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