We have Arabians and Quarter Horses – all with long manes and tails – and we deal with “pixie knots” all the time. Our magic mix comprises of 1/3 Show Sheen, 1/3 Cowboy Magic Detangler, and 1/3 Infusium leave in conditioner. Shake it up and spray it on the knots. Let it sit for a few minutes then start slowly working on them from the bottom up with a wide-tooth comb. Best of luck!