The short answer for a small, stiff Shetland
An ageing Shetland pony is helped most by shrinking his world to his scale: feed, water, shelter and companionship all within a short, level walk of his stable, and nothing he has to step up, reach up or scramble for. A Shetland's legs are short, so distances and thresholds that look trivial to a horse owner are real work for an old pony whose knees and fetlocks have stiffened.
Bring everything down to pony height
An ageing Shetland eats and drinks best with his head in the position his neck was built for, so set hay on the ground or in a low net he cannot hook a small hoof through, and check that the water trough's rim sits below his chest rather than forcing him to stretch up and brace. If your trough is a tall horse model, a lower pony-sized tub beside it removes a daily strain. Stable fittings deserve the same audit: a hay rack fitted for a previous, taller occupant asks this pony to pull fodder down into his eyes, and a high manger makes soaked feeds hard to reach once his teeth wear.
Make the ground forgiving under short legs
An ageing Shetland who slips on wet concrete has very little leg length with which to catch himself, so the yard between stable and paddock matters as much as either. Rubber matting over slick concrete, gravel kept raked level on gateways, and mud scraped back before it freezes into ruts all protect his confidence. Inside the stable, keep a genuinely thick bed under him, because old ponies lie down longer and rise with more effort, and a thin bed over hard floor makes getting up a reason to stay down. Choose a shelter or stable with a flush entrance; even a small raised threshold becomes a trip point for short, arthritic steps.
Shorten the daily geography
An ageing Shetland does not need a huge field — he needs a small, interesting one close to home. Bring his turnout nearer the yard so the morning and evening walks shrink, and let him see his companion from the stable so he is not calling and pacing on stiff joints. A companion sharing his paddock or the next one keeps an old social pony settled without a youngster's rough play. If he shares grazing, watch that bolder ponies are not walking him off the hay pile; feeding in more piles than there are ponies protects the smallest mouth.
Manage the waistline while you manage comfort
An ageing Shetland still carries his breed's thrift: he can grow fat on grazing that would leave a horse merely full, and extra weight loads already worn joints and strains his whole system. Comfort adjustments should never become a licence for unlimited grass. A smaller paddock with hay offered in slow-feed style, a track arrangement around the field edge if space allows, and regular hands-on condition checking under that thick coat — ribs felt, not guessed through winter fluff — keep comfort and weight in balance. Weigh-tape readings jotted down monthly catch creep in either direction.
Watch the Shetland-specific signals
An ageing Shetland who starts dropping half-chewed hay, eating slowly or leaving his hard feed may be telling you his teeth need attention, and soaked or softened feeds bridge the gap until the vet or dental technician sees him. Reluctance to walk out, shortened steps on hard ground, or lying down far more than usual deserve a vet conversation rather than more bedding alone, and any sudden lameness in a pony of his build is urgent, not a wait-and-see. KinsLe's Pet Passport pulls this Shetland's dental history, weight log and vet notes into a single portable record, so whoever checks him next starts from his real story.