Orange-wutang & Naranjito

I have to add something because other growers are reacting now based on just the 3 images. I have seen your diary, so i seen your videos. All your upper leafs are at the good collor green even some are little darkish green, meaning your plants in total are NOT suffering from a deficiencies in my opinion, these opinions are only based on your 3 pictures from some lower leafs. You already have yellow tips on all off your leafs. Don't do unnecessary things because of just a few leafs getting absorbed on the lower side of the plant.