Fish supply stores fall into a few distinct categories, and knowing which type to use for which purchase saves you money and improves your fish-keeping results. Local fish stores are the best source for live fish and plants because you can assess health before buying. Chain pet stores offer convenience but limited selection and variable livestock quality. Online fish supply retailers beat everyone on price for dry goods and equipment.
This guide covers what to look for in a good local fish store, how to evaluate chain pet stores, which online retailers are worth using, and what to have on hand before your fish come home.
Types of Fish Supply Stores
Independent Local Fish Stores (LFS)
A dedicated local fish store, often called an LFS, is typically owned and staffed by people who are genuinely into the hobby. These stores often stock species you can't find at a chain and carry higher-quality live plants, coral, and more unusual invertebrates. Prices on dry goods are usually higher than online, but many carry products you'd have to wait days to ship.
The best independent fish stores also quarantine new arrivals for at least two weeks before putting them on sale. That quarantine period is the single most important factor separating quality fish stores from ones that are just selling whatever survived shipping.
Chain Pet Stores (PetSmart, Petco)
Chain stores are convenient and widely available. Their fish selection covers the common staples: bettas, goldfish, guppies, mollies, tetras, and the occasional cichlid. For equipment and supplies, their pricing has improved as competition from online retailers has grown, but selection is still narrower than specialty stores.
The quality of fish sections at chain stores varies by location and by how much attention individual store managers pay to the tanks. Some chain fish sections are well-maintained. Others are clearly secondary to dogs and cats. You'll have to check your local store.
Online Retailers
For dry goods, online fish supply retailers are almost always the right choice for price and selection. For live fish, reputable online vendors fill the gap when local stores don't carry what you want. We'll cover specific online retailers in detail below.
What Makes a Fish Supply Store Worth Your Business
Walk in and spend a few minutes looking before you buy anything.
Tank maintenance quality. Clean viewing glass and clear water indicate regular maintenance. Cloudy water, algae on the front glass, or obviously dirty tanks suggest the store is cutting corners.
Dead fish count. A dead fish in a tank is not automatically disqualifying. Fish die in shipping and stores don't always catch them instantly. Multiple dead fish in the same tank, or visible sick fish that aren't being isolated, is a serious concern.
Staff willingness to answer questions. Ask how long new arrivals are quarantined. Ask what pH they keep their tanks at. A staff member who can answer those questions without hesitation has been trained properly. One who just says "I don't know" and moves on hasn't.
Compatibility in display tanks. Stores that put incompatible fish together (aggressive species with passive ones, fish requiring different temperatures or pH) show they're not managing livestock carefully. If they're not careful about that, they're probably not careful about disease prevention either.
The Best Online Fish Supply Stores
For Equipment and Dry Goods
Chewy is the most convenient for ongoing supplies. Filter media, fish food, medications, and water treatment products all ship quickly and pricing is competitive. Their autoship program saves 5-15% on items you buy regularly, which adds up fast on things like Seachem Prime and Fluval filter pads.
Amazon has the broadest selection and often the lowest prices, but verify seller reputation for anything safety-critical like heaters or medications. Buy from established brand sellers rather than third-party resellers for heaters especially.
Aquarium Co-Op focuses on freshwater fish keeping and planted tanks. They carry their own branded sponge filters, foods, and medications, all of which have good reviews from the aquarist community. Their educational content alongside their store makes them a useful resource, not just a retailer.
For broader equipment coverage and pricing comparisons, the best online fish supply store guide compares retailers across categories. If aeration is part of your equipment list, the oxygen machine for fish tank price article covers air pump and aerator pricing specifically.
For Live Fish Online
LiveAquaria is one of the oldest and most reliable sources for live fish online. They sell freshwater, marine, and reef livestock and offer a live arrival guarantee. Their Diver's Den section sells individual pieces of coral and fish photographed in their actual tanks, which reduces the guesswork involved in buying marine livestock.
Aquatic Arts ships freshwater fish with care and provides detailed acclimation instructions. Their selection of unusual livebearers, native North American fish, and rare corydoras species is excellent.
Imperial Tropicals is known for healthy, properly-sized fish at reasonable prices for tetras, guppies, corydoras, and shrimp.
Supplies to Have Before Your Fish Arrive
Buying fish and then scrambling to set up a tank is a common and expensive mistake. A few supplies should be ready before any fish come home.
A cycled tank. The nitrogen cycle converts toxic ammonia from fish waste into less harmful nitrate. A new tank without established beneficial bacteria will kill fish within days. Use Tetra SafeStart Plus or API Quick Start to jumpstart the cycle, or run the tank for 4-6 weeks before adding fish.
Water conditioner. Seachem Prime or API Stress Coat should be on hand before you turn on the tap to fill a tank. Chlorine and chloramine in tap water are toxic to fish and to the beneficial bacteria you're trying to establish.
A test kit. The API Freshwater Master Test Kit covers ammonia, nitrite, nitrate, and pH. Test weekly during the first month and after every new fish addition.
Food appropriate to your species. Bettas need high-protein food like Hikari Betta Bio-Gold or Fluval Bug Bites Betta. Community fish do well on Omega One Freshwater Flakes or TetraMin. Bottom feeders need sinking wafers or pellets that reach them before the surface fish finish everything.
What You Don't Need from a Fish Store
Pet stores and aquarium shops stock a lot of products that are either useless or actively harmful.
Betta bowls and small vases. Any container under 2.5 gallons is inadequate for a betta long-term and cruel short-term. No amount of other accessories makes a 1-gallon vase acceptable.
Goldfish in tropical community tanks. Staff at low-quality stores sometimes suggest this. Goldfish are coldwater fish that need 55-65°F water. They will either stress your tropical fish with cold temperatures or suffer in warm water. They also produce more waste than most fish their size.
Instant-cycling products that claim to "cycle in 24 hours" without establishing actual bacterial colonies. Tetra SafeStart Plus and API Quick Start contain real live bacteria. Most other "cycle" products are just bottled water with marketing claims.
FAQ
What's the difference between a fish store and a pet store for buying aquarium supplies? A dedicated fish store specializes in aquatic life and equipment, typically has better livestock quality, more specialized knowledge, and more variety in both equipment and fish species. A general pet store is convenient but usually carries a narrower selection of fish and equipment with less specialized staff.
Should I buy fish online or in person? In person is better when a quality local store is available because you can assess fish health directly. Online is the right choice when you need species unavailable locally, or when local fish store quality is poor. Use reputable online vendors with live arrival guarantees.
What supplies should I buy before setting up a new fish tank? A filter, a heater (for tropical fish), a thermometer, water conditioner (Seachem Prime or API Stress Coat), a test kit (API Freshwater Master Test Kit), and the appropriate food for your planned fish. Have all of this set up and the tank cycled before adding fish.
Are expensive fish store brands worth the premium over cheap alternatives? For safety-critical equipment like heaters, yes absolutely. For filters, established brands like Aquaclear and Fluval have better track records for reliability and parts availability. For food and water conditioner, quality matters but you don't always need the priciest option. Seachem Prime costs more per bottle than API Stress Coat but treats more water per dollar.