I agree with Graco22. Also, it's better if you brush daily to avoid mats. It doesn't take long if you keep up with it regularly. Also, when you bathe him, brush while you blow dry, or else the hair will twirl itself up. Is your dog a puppy? If so, he'll go through a coat change to a woolier texture as he matures. Cute dog in your avatar - beautiful red color, from what I can see!
It seems I had to do both to get all the clumps of hair out... just wondered which is more efficient. I find myself compelled to keep brushing her as her hair tends to twirl up very quickly and I can stand it when that happens! LOL!!
My dog is fully grown already, I find giving her flax/salmon oil helps reduce the matting, actually I can't find much matts on her now.... She was really dark brown(or apricot?? I can't firugre out the difference anyway!! I'm pretty sure she's not red...), but her colour has faded quite a bit... is there any way of keeping her colour dark??