Mane and tail detangler?

If the tail or mane is matted badly (witches knot), then I have always used plain old corn oil that you can buy in any grocery store. Pour it over the knot (use the whole bottle), let it soak in, and then starting at the bottom, gently comb out. To keep the mane and tail smooth and tangle free, I use the Tangle Wrangler brush since it does not break the hair, and buy Suave products by the truckload. Works the same (if not better) than all of the expensive horse shampoos and copnditioners at a fraction of the cost. As far as spray in conditioner goes, I prefer the Premier Prodcuts rose spray. Daily brushing will actually do more than anything to keep out the tangles and will stimulate the hair growth. I have groomed for 25 years and this is what has always worked best for me. Good Luck!