A pale-bodied betta with blue-black panda patching. Males solo in 5+ gallons; females can go in a planted sorority of 5+ in a 20+ gallon. Gentle flow, heated, lid on.

A soft lilac-toned dwarf gourami. Peaceful centerpiece for a planted community; keep one male per tank and give it floating cover and calm tankmates.

One of the most peaceful eartheaters — sifts sand all day and colors up with a red-orange head and metallic flanks. Soft sand substrate is a must; 55+ gallons for a group.

A big, shimmering silver-white Central American cichlid. Juvenile now, but plan on 75–90 gallons and robust tankmates — territorial as it matures.

Deep red oscar with a ton of personality. Grows fast and big — 75+ gallons, heavy filtration, and no small tankmates it can swallow.

One of our best-selling corys. Black-masked and playful; keep 6+ on sand and feed sinking foods. Prefers the cooler end of the tropical range.

Spotted cory with orange pectoral fins. Tolerates warmer water than most corys, so it pairs well with discus and rams. Groups of 6+ on sand.

Fine-spotted classic cory. Peaceful bottom crew for community tanks — sand or smooth gravel, sinking wafers, groups of 6+.

The true Corydoras agassizii — a mottled, silver-bodied cory that's less common than the look-alikes. Same easy cory care: sand, groups, sinking food.

A bronze cory with orange-copper shoulders and a green sheen. Hardy and active; keep in groups of 6+ over sand.

A slender, spotted armored catfish that swims mid-water more than a cory does. Peaceful and social — keep 4+ with driftwood and gentle flow.

Big, showy dumbo-eared pectoral fins in mixed colors. Easy, hardy livebearers; harder water and a pinch of salt keep them happy. They will breed.

Long ribbon fins trailing off the body in a mix of colors. Standard guppy care — peaceful community, moderate flow so the fins aren't a burden.

Clean silver body with a spotted leopard tail. Same easy guppy care; great starter fish for a planted community.

Red platy with dark tiger barring. Bulletproof community livebearer — likes harder, alkaline water and will graze soft algae.

A nano rainbow (Pseudomugil) with glowing red-orange fins and electric blue eyes. Keep 8+ in a planted tank; males display constantly.

Sawbwa resplendens — a Lake Inle rasbora with a red nose and red tail spots on a blue-silver body. Wants cooler, harder water than most rasboras. Groups of 8+.

Bold black-and-white garra that grazes algae and biofilm off glass and rock. Wants current and oxygen; a real character that will sit on your hand at feeding time.

A bright orange dwarf crayfish that stays small and is far gentler than full-size crays. Nano-friendly with lots of hides; may pinch slow fish and small shrimp.

Solid, deep-blue Neocaridina. Same easy care as cherry shrimp: stable mature tank, sponge filter, no copper meds.

The pest-snail solution — hunts down bladder and ramshorn snails, then scavenges. Breeds slowly, leaves plants alone.

Nerites are the gold standard for algae control and won't breed in freshwater. Tight lid — they wander.

Bold red-striped nerite with the same reliable glass-cleaning habits. Peaceful with fish, shrimp, and plants.

Banded racetrack pattern on a hard-working algae eater. Likes harder water for shell health.

Our top-selling saltwater fish — and this one is the Christmas Island color form, with deep red and clean vertical bars. Reef safe with caution: may nip LPS and clam mantles. 70+ gallons with live rock to graze.

Hardy purple-and-orange dwarf angel, one of the easiest angels to keep. Reef safe with caution — usually fine, occasionally nips corals. Feed algae-based foods.

Solid yellow dwarf angel with a blue eye ring. Needs plenty of rock to graze; more likely than most dwarfs to pick at LPS and clams, so best in FOWLR or a soft-coral tank.

A near-white designer ocellaris with faint orange edging. Easy, peaceful, and hosts anemones if offered. Great in pairs.

Jet black body with three white bars. Hardy and peaceful — a classic first reef fish, alone or in a bonded pair.

Blue-purple dottyback that stays smaller and calmer than most dottybacks. Won't touch corals; can bully very small gobies in a nano, so give it 30+ gallons.

Electric blue-and-orange with a neon stripe. Eats bristleworms and small pests. Add it last — it will defend its cave.

The dark morph of the neon dottyback — black body, blue neon line. Same bold, pest-hunting personality; one per tank.

Purple-and-yellow basslet and one of our steady best sellers. Hardy, reef safe, and peaceful as long as it has a cave to call its own.

Red-and-white striped goby with a tall dorsal sail. Pairs with a pistol shrimp if you have one. Nano-friendly; needs a tight lid.

The classic yellow watchman — sits at its burrow entrance and pairs with a pistol shrimp. Hardy, reef safe, sand bed required.

A sand-sifting sleeper goby that keeps the substrate turned and clean. Needs a deep, established sand bed and 55+ gallons or it may go hungry.

Tiny Caribbean goby with green-and-red bands. Perfect for nano reefs; peaceful and hardy.

Slender, shy dartfish that hovers over the rockwork in small groups. Nano-safe; keep 3+ and cover the tank — they jump.

The fish everyone asks for. Reef safe and peaceful, but it grows — plan on 125+ gallons and a stable, mature system. Two sizes in this week.

A big, elegant swimmer that grows streamers with age. Reef safe algae grazer; strictly a 180+ gallon fish long-term.

One of the flashiest fairy wrasses — males flash red, blue, and green. Peaceful reef fish that never touches corals; lid required, it jumps.

Spotted, striped, and very hardy. A slow, peaceful schooling fish for reef or FOWLR — keep 3–6 together.

Checkerboard-patterned hawk that perches on rock and gorgonians. Reef safe with caution — will eat small shrimp and tiny fish. Lid required.

Already acclimated to full marine salinity. A cheap, hard-working hair-algae grazer for reef or FOWLR tanks — and a good way to test a new setup.

Our top-selling saltwater shrimp. Sets up a cleaning station and picks parasites off fish. Reef safe, easy, and bold once settled.

Deep red with white spots — the showiest cleaner shrimp. Shy at first; give it an overhang and it'll come out at feeding time.

A sand-bed grazer that eats detritus and film algae. Reef safe and hardy; needs a sand bed to work.

Bright orange-and-red banded hermit that grazes algae and cleans up leftovers. Larger than blue legs — keep spare shells so it doesn't evict snails.

Classic clean-up crew. Grazes film algae nonstop; stock 1 per 2–3 gallons with extra empty shells.

Red-legged hermit that's calmer around snails than blue legs. Reef safe algae and detritus eater.

Workhorse rock and glass grazer — one of our best-selling snails. Can't right itself if flipped, so keep an eye out.

Fast-moving hair-algae specialist. One of our steady sellers; prefers cooler reef temps and won't harm corals.

Cone-shaped grazer that can right itself and breeds in the tank. Reef safe, eats film and diatoms.

Big appetite for hair algae and film. Reef safe but can bulldoze loose frags — glue your corals down.

Colorful blue-and-red banded urchin that mows algae off rock. Reef safe with caution: it carries frags and rubble on its back and can knock things over.