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How big would a mastiff/pitbull mix grow to be and what would its temperament be like?
What kind of exercise and grooming needs do these dogs usually have?
They are both fairly active breeds, so they will need regular exercise and mental stimulation. A daily walk or run and some playtime in a yard or park should suffice. As for grooming, they have short hair, so they don't require a lot of maintenance in terms of brushing, though they should be bathed as needed. Regular nail trimming and ear cleaning are also important. Of course, this can vary depending on the individual dog's coat and activity level.