One of my geldings, an appy, has a very thin tail. He is in great condition and overall very healthy but his tail is so thin and patchy, some parts are much shorter, he does not rub it on anything and has not had any issues like sweet itch, I am just wondering why his tail may be this way (his mane is not like this, it is much thicker) and whether there are any tips to help it thicken or grow?