The direct answer for finding a betta-experienced vet
A vet experienced with bettas usually sits inside exotic-animal or aquatic practice, not in a standard dog and cat clinic, so search there first. Professional aquatic veterinary associations keep member directories, university veterinary hospitals often run exotic services that see pet fish, and specialist aquarium shops usually know exactly which local vets their customers trust with a sick betta. Expect choice to be limited: in many areas only one or two practices genuinely examine fish, and the right vet may be a longer drive than you would make for a dog. Finding that name while your betta is healthy is the real task, since a fish in trouble tolerates delay poorly.
What betta experience actually looks like
Ask the practice plainly whether the vet sees pet fish, how often, and what happens at a betta appointment. A betta-experienced vet can examine the fish, check gill and skin condition, discuss water test results intelligently, and explain findings in terms of the tank the fish lives in. A practice that only offers to sell you a bottled tonic, or that has never had a fish patient, is not offering veterinary care for your betta however kind the staff are. It is also worth asking whether the vet will review clear photographs or video of the betta's swimming and breathing before a visit, since many aquatic vets triage fish cases this way. Honest answers to those questions tell you more than any advertisement using the word exotic.
Where to search beyond the obvious listings
General practice listings rarely flag fish experience, so widen the net deliberately. Search aquatic veterinary association directories by your area, then call exotic practices within travelling distance and ask the betta question directly, since some vets see fish without advertising it. Specialist fish retailers, especially independent shops that quarantine and treat their own stock, are a strong source, and so are regional aquarium clubs whose members keep lists of fish vets. Online betta communities can supply names too, but treat them as leads to verify by phone rather than settled recommendations, because a vet praised for one case may no longer be practising. If a university veterinary teaching hospital is reachable, its exotic service is often the most dependable route of all.
Setting up the relationship before you need it
Once you have a name, register your betta with the practice if it allows that, and ask how emergencies and out-of-hours fish cases are handled. Learn the transport method the vet prefers: usually the betta carried in a secure container of its own tank water, kept warm and dark, with a separate sample of tank water for testing. Ask what information to bring, which normally means recent water test results, feeding details, tank size and companions, and when the behaviour change began. Write the answers down rather than trusting memory under stress.
Keeping the contact where you will find it
The common failure is not the search but the filing: the vet's name ends up in a lost message thread while a betta fades. Keep one clear record holding the practice name, phone number, address, out-of-hours arrangement, and the transport notes the vet gave you, and share it with anyone who might care for the fish while you travel. Update it if the practice changes staff or stops seeing fish, which does happen in this small field. Note the second-choice practice too, because a single fish vet on holiday leaves you with no cover. Storing the chosen practice in KinsLe Pet Services Directory keeps that contact listed alongside the local pet services you already use, so it surfaces in seconds when a betta needs help.