Hi! Looking for a little advice about joint supplements for my Border Collie (male, neutered, somewhere between 8 and 10 y/o) He has been reluctant to walk recently and a little stiff in the back end. Vet currently has him on painkillers (Onsoir). Going forward I would like to add some sort of joint supplement to his diet as well as adding extra oily fish to his diet. I was looking at a combination of golden paste and green lipped mussel powder. Would this be appropriate rather than a 'complete' type supplement like Yumove? Any help appreciated!