just wondering if my boys coat colour will change any more just wondering as he is my first sable gsd he has changed so much in the last few months i think he is pattern sable correct me if im wrong any opinions would be great he is 8 months now also at what age do gsd's tend to stop growing some people say 1 year others say 2 or 3 years old im not sure because my first gsd was a rescue and he was already 4 years old and my second i regretfuly had to give up at about 9 months old (long and very sad story

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thank you