Overunder 2 minutes . Under <| sep |> I don ' t know why you are getting downvoted . And . I ain ' t your babe , dame . <| sep |> Correct . Also known as . <| sep |> Do you know if that power supply can run an i 7 6700 k with a 1060 with no issue ? <| sep |> Was law boring to you ? <| sep |> He chuckles again and walks over to the Poseidon table . I ' m guessing you like the food ? <| sep |> Hey man novice grower here . No one else has tried to answer yet so I ' ll try because I ' ve had a lot of issues with this type of thing so far myself . Looks like it could be a nutrient burn . From what I ' ve read a seedling should only be fed water until it shows signs of deficiency then start with a 14 strength 12 strength feeding schedule based on manufacture instruction . Because you are at a very low humidity , the plants will be pulling a ton of water from the medium because they can ' t pull any moisture from the air . At least that ' s how I understand it . My recommendation would be to feed your plants he absolute minimum nutes required to sustain optimal growth . In other words , if there are no deficiencies then let it ride . Good luck dude .