Congratulations, that's a beautiful tree! :) The second to the last picture (where you're showing the new growth) looks almost like scarring from citrus leaf miners. Look up pictures of CLM and see if it matches anything you see on the tree. Could be old, too, in which case, I wouldn't worry about it. New growth tends to be lighter in color but it looks almost like magnesium deficiency due to the christmas tree pattern. If you do decide to add magnesium, also consider adding calcium as they come as a pair and too much of one prevents the tree from using the other one. Try to get a good fertilizer with magnesium and calcium in addition to a good NPK ratio. I believe that everyone likes Dyna Gro here. The speckling on your leaves could also have come from spider mites. They look like tiny dark or red pinpoints that move. See anything like that on your tree? I'm still in the process of trying 511 myself but I've heard nothing but good things about it. It almost doesn't matter how damp or wet the soil is right after you water it. What matters the most is how fast the soil dries out. Its okay to be damp right after watering. If you use a water probe, wait until its just below 50% (debatable for all the experts out there, and I'm no expert) before watering. You should have to wait no longer than a week for your soil to need another thorough watering (in my opinion). I have no guesses as to what the tiny white bugs in your soil are but I googled springtail and the pictures that came up are simply horrifying. Good luck!

i see movement .... but i cant focus on the bugs. the white stuff in the soil.. is just a fungus that is naturally breaking down your very fine soil ... ignore it ... its natural ... you ask if they are eating the roots.. i ask.. whats your concern.. look liked a healthy root mass to me ... you might want to try shaking some on a black sheet of paper .. and taking pix.. ken

They're not a problem. Allow the potting mix to dry off a bit. A general guideline: Plant pests move slowly whereas predators move rapidly.

Where in the world are you? That may be of some help in knowing what you may have. If you are not in the United States, and do not have the Cooperative Extension Service to consult where you are is really important. kimmq is kimmsr