The care guides

Freshwater species we cover

We're building the warmest, most trustworthy freshwater care library there is — from the best beginner fish to the planted-tank favourites, each one fact-checked before we publish it.

96 of 96 fully sourced

We only flip a guide from "coming soon" to published once its numbers are checked against authorities — no guessing.

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Tetras & rasboras 22

Neon Tetra

Paracheirodon innesi

The classic shimmering schooling fish — stunning in numbers, but buy a real group, not three.

Tropical community tank ✓ Care guide

Cardinal Tetra

Paracheirodon axelrodi

The neon's bolder, redder cousin — deeper colour and a bit hardier in a warm, mature tank.

Tropical community tank ✓ Care guide

Ember Tetra

Hyphessobrycon amandae

A tiny ember-orange nano schooler — perfect for a small planted tank.

Tropical community tank ✓ Care guide

Harlequin Rasbora

Trigonostigma heteromorpha

A hardy, peaceful copper-and-black schooler — one of the best first schooling fish.

Tropical community tank ✓ Care guide

Rummynose Tetra

Hemigrammus rhodostomus

The schooler with a red nose that tells you your water's right — tight-shoaling and elegant.

Tropical community tank ✓ Care guide

Chili Rasbora

Boraras brigittae

A pinch of glowing red — one of the smallest, most jewel-like nano fish, but it needs a mature, stable, gently-run tank.

Tropical community tank ✓ Care guide

Cherry Barb

Puntius titteya

A calm, ruby-red small barb — the peaceful exception in a family known for fin-nipping, and a great beginner shoaler.

Tropical community tank ✓ Care guide

Tiger Barb

Puntigrus tetrazona

A bold, striped, endlessly busy barb whose "fin-nipper" reputation is really a stocking problem — buy 8+ and give them room.

Tropical community tank ✓ Care guide

Glowlight Tetra

Hemigrammus erythrozonus

A hardy, glowing beginner tetra — soft-ish water, gentle warmth, and a shoal of six or more is all it really asks for.

Tropical community tank ✓ Care guide

Rosy Barb

Pethia conchonius

A hardy, subtropical 4-inch barb (16–24 °C) — keep 8–10 in a metre-long tank and the "nippy" reputation disappears.

Tropical community tank ✓ Care guide

Denison Barb

Sahyadria denisonii

A cool-water shoaler, not a solo showpiece — 6–10 fish, a 120 cm+ tank and spotless, oxygen-rich water.

Tropical community tank ✓ Care guide

Congo Tetra

Phenacogrammus interruptus

Drab and grey in the shop, it matures into an iridescent, long-finned showpiece in soft, clean, well-circulated water.

Tropical community tank ✓ Care guide

Odessa Barb

Pethia padamya

A subtropical, ruby-flanked barb that is peaceful and easy — as long as you keep a real shoal of 8–10.

Tropical community tank ✓ Care guide

Black Skirt Tetra

Gymnocorymbus ternetzi

An unfussy, hardy community tetra — keep 12+ and the fin-nipping reputation melts away.

Tropical community tank ✓ Care guide

Serpae Tetra

Hyphessobrycon eques

Gorgeous in a real shoal, a menace in a small one — keep 12+ and give them their own upper water.

Tropical community tank ✓ Care guide

Black Neon Tetra

Hyphessobrycon herbertaxelrodi

The calm, hardy cousin of the neon — a green-and-black racing stripe that handles beginner mistakes better than most.

Tropical community tank ✓ Care guide

Black Phantom Tetra

Hyphessobrycon megalopterus (now often placed as Megalamphodus megalopterus)

A smoky, ghostly tetra whose males "duel" harmlessly — best in a group where that display comes alive.

Tropical community tank ✓ Care guide

Emperor Tetra

Nematobrycon palmeri

A regal violet-and-gold tetra with blue eyes — a bit more of a personality (and a mild fin-nipper) than the average schooler.

Tropical community tank ✓ Care guide

Lambchop Rasbora

Trigonostigma espei

The harlequin's slimmer cousin — a warm-copper nano rasbora with a lamb-chop patch, perfect for a planted community.

Tropical community tank ✓ Care guide

Lemon Tetra

Hyphessobrycon pulchripinnis

A sunshine-yellow shoaling tetra with a ruby eye — easy and forgiving, as long as you keep it in a real group.

Tropical community tank ✓ Care guide

Scissortail Rasbora

Rasbora trilineata

A fast, silvery shoaler whose forked tail flicks like scissors — needs real swimming length, not a nano tank.

Tropical community tank ✓ Care guide

X-Ray Tetra

Pristella maxillaris

A translucent little tetra with a built-in "x-ray" look — one of the toughest, most water-tolerant tetras there is.

Tropical community tank ✓ Care guide

Catfish & bottom-dwellers 14

Corydoras Catfish

Corydoras spp.

The endearing armoured bottom catfish that works in cheerful groups — a community-tank staple.

Tropical community tank ✓ Care guide

Bristlenose Pleco

Ancistrus cirrhosus

The manageable, algae-grazing pleco that stays a sensible size — unlike the common pleco.

Tropical community tank ✓ Care guide

Otocinclus

Otocinclus spp.

The tiny, peaceful algae-eating catfish — wonderful, but only for a mature, algae-rich tank.

Tropical community tank ✓ Care guide

Panda Cory

Corydoras panda

The panda-masked pocket cory — all the charm of a Corydoras shoal in a smaller, cooler-running package.

Tropical community tank ✓ Care guide

Pygmy Cory

Corydoras pygmaeus

A thumbnail-sized shoaling cory that swims the mid-water in a tight little group — a nano-tank favourite that needs numbers, not a lone pair.

Tropical community tank ✓ Care guide

Common Pleco

Pterygoplichthys pardalis

Sold as a 3-inch cleaner, it grows to nearly 2 feet — buy a bristlenose instead unless you can house a giant for life.

Tropical community tank ✓ Care guide

Siamese Algae Eater

Crossocheilus langei

The real black-brush-algae eater — a 6-inch river shoaler, not a solo clean-up tool; check the ID and skip the protein.

Tropical community tank ✓ Care guide

Clown Pleco

Panaqolus maccus

A true dwarf pleco (~9 cm) that EATS wood — give it driftwood and strong filtration, not a common-pleco tank.

Tropical community tank ✓ Care guide

Sterbai Cory

Corydoras sterbai

The warm-water, discus-friendly cory — keep six+ over clean sand; it forages, it doesn’t "clean".

Tropical community tank ✓ Care guide

Glass Catfish

Kryptopterus vitreolus

A living pane of glass — a shy, transparent shoaling catfish that lives in mid-water and needs the security of its own kind.

Tropical community tank ✓ Care guide

Julii Cory

Corydoras julii (now often Hoplisoma julii)

A spotted, peaceful bottom-dweller (usually the "false julii" C. trilineatus) — a tidy, sociable cory for any community.

Tropical community tank ✓ Care guide

Pictus Catfish

Pimelodus pictus

A silver, spotted speed-demon catfish with long whiskers — active and charming, but it will eat any fish it can fit in its mouth.

Tropical community tank ✓ Care guide

Rubber Lip Pleco

Chaetostoma formosae (the hobby name "rubber lip pleco" also covers close Chaetostoma relatives such as L146, and older books use C. milesi or C. thomsoni)

A genuinely small pleco that actually eats algae — a peaceful, cool-tolerant grazer that won't outgrow your tank like a common pleco.

Tropical community tank ✓ Care guide

Salt and Pepper Cory

Corydoras habrosus

A pea-sized dwarf cory that shoals in mid-water as much as the bottom — nano-tank charm with real personality.

Tropical community tank ✓ Care guide

Loaches 9

Kuhli Loach

Pangio kuhlii

The little eel-like loach that hides by day and pops out at night — a peaceful, quirky bottom-dweller.

Tropical community tank ✓ Care guide

Clown Loach

Chromobotia macracanthus

Sold as a cute juvenile, but it hits ~40 cm, lives 20+ years, and must be kept in a shoal in a huge tank.

Tropical community tank ✓ Care guide

Yoyo Loach

Botia almorhae

Not a small snail-zapper — a ~6-inch social loach that needs a mature tank, a group of 5+, and a locked-down lid.

Tropical community tank ✓ Care guide

Dwarf Chain Loach

Ambastaia sidthimunki

A planted-tank-safe mini loach — but a real shoal of 5+, no long-finned tankmates, and not snail pest-control.

Tropical community tank ✓ Care guide

Hillstream Loach

Sewellia lineolata

A cool, high-flow river specialist — mature biofilm tank, 15–20× turnover, a group of 6+ and a tight lid.

Tropical community tank ✓ Care guide

Weather Loach

Misgurnus anguillicaudatus

A hardy ~11-inch coldwater loach with real personality — needs a big cool mature tank and must never be released.

Coldwater (goldfish) tank ✓ Care guide

Zebra Loach

Botia striata

The best community Botia — but only in a mature tank, in a group of 5–10+, and never as snail pest-control.

Tropical community tank ✓ Care guide

Panda Garra

Garra flavatra

A stripy, busy little algae-grazer with real character — a hillstream-ish garra that stays small and works hard on biofilm.

Tropical community tank ✓ Care guide

Rosy Loach

Physoschistura mango (formally described 2023). Long sold under the trade names Petruichthys sp. 'rosy', Yunnanilus sp. 'rosy', and Tuberoschistura arakanensis. Note: Petruichthys brevis is a related but separate species (the Inle Loach), not the trade Rosy Loach.

A thumbnail-sized, peaceful shoaling loach with a rosy glow — a charming, active nano bottom-to-mid dweller.

Tropical community tank ✓ Care guide

Cichlids 15

Angelfish

Pterophyllum scalare

The tall, graceful centrepiece cichlid — beautiful, but a semi-aggressive predator that outgrows small tanks.

Cichlid setup ✓ Care guide

German Blue Ram

Mikrogeophagus ramirezi

A jewel of a dwarf cichlid — stunning colour, but wants warm, clean, mature water.

Cichlid setup ✓ Care guide

Apistogramma

Apistogramma spp.

The 'apisto' — a characterful dwarf cichlid with big personality in a small package.

Cichlid setup ✓ Care guide

Kribensis

Pelvicachromis pulcher

A colourful, easygoing West African dwarf cichlid — one of the best first cichlids, right up until a pair decides to breed.

Cichlid setup ✓ Care guide

Bolivian Ram

Mikrogeophagus altispinosus

The hardy, forgiving dwarf cichlid — all the personality of a ram without the German blue ram’s demand for scorching, unstable-tank-killing warmth.

Cichlid setup ✓ Care guide

Discus

Symphysodon aequifasciatus

The shy, disc-shaped jewel of the Amazon — demanding not for mystery but because it wants hot, clean, stable water kept consistently.

Cichlid setup ✓ Care guide

Oscar

Astronotus ocellatus

A personable "wet pet" cichlid that hits ~35 cm, lives 10–20 years, and needs a big, heavily filtered tank of its own.

Cichlid setup ✓ Care guide

Convict Cichlid

Amatitlania nigrofasciata

Small, bombproof and cheap — but "not a community fish": convicts are a species-tank cichlid.

Cichlid setup ✓ Care guide

Electric Yellow Lab

Labidochromis caeruleus

The "beginner’s mbuna" — but only with hard, alkaline Malawi water and the right male-to-female ratio.

Cichlid setup ✓ Care guide

Electric Blue Acara

Andinoacara pulcher

A calm, beginner-friendly cichlid — but still a cichlid: stable water, sand to dig, tankmates too big to swallow.

Cichlid setup ✓ Care guide

Firemouth Cichlid

Thorichthys meeki

Its fiery throat is mostly bluff: a 5-inch bluffer that needs a mature tank, real space, and tankmates too big to eat.

Cichlid setup ✓ Care guide

Blood Parrot Cichlid

Hybrid cichlid (Cichlidae) — usually Amphilophus citrinellus x Vieja melanurus; no valid species name exists for a man-made hybrid

The round-bodied, permanently-"smiling" hybrid cichlid — endearing and personable, but a deliberate hybrid with real welfare trade-offs.

Cichlid setup ✓ Care guide

Keyhole Cichlid

Cleithracara maronii

The gentle, timid cichlid — a soft-water community fish that would rather hide than fight, unusual for its family.

Cichlid setup ✓ Care guide

Severum

Heros efasciatus

A disc-shaped, dog-tame big cichlid — a calmer, hardier alternative to a discus for a large tank.

Cichlid setup ✓ Care guide

Shell-Dweller (Multi)

Neolamprologus multifasciatus

A thumb-sized cichlid that lives, breeds and hides in empty snail shells — a whole colony in a nano footprint.

Cichlid setup ✓ Care guide

Shrimp & snails 10

Cherry Shrimp

Neocaridina davidi

The beginner's dwarf shrimp — colourful, a cleanup-crew helper, and prolific in stable water.

Shrimp / invert tank ✓ Care guide

Amano Shrimp

Caridina multidentata

The algae-eating workhorse shrimp — bigger and hardier than cherries, and the best natural algae crew.

Shrimp / invert tank ✓ Care guide

Nerite Snail

Neritina spp.

The best algae-eating snail that won't overpopulate your tank — its eggs need brackish water to hatch.

Shrimp / invert tank ✓ Care guide

Mystery Snail

Pomacea bridgesii

The big, friendly, colourful snail that grazes leftovers — peaceful and won't devour your healthy plants.

Shrimp / invert tank ✓ Care guide

Assassin Snail

Clea helena

The hobby’s natural pest-snail control — a bumblebee-striped carnivore that hunts other snails but leaves fish, plants and adult shrimp alone.

Shrimp / invert tank ✓ Care guide

Ramshorn Snail

Planorbella / Planorbarius spp.

A harmless algae-and-leftovers cleaner that only "infests" when you overfeed — control the food, control the colony.

Shrimp / invert tank ✓ Care guide

Bamboo Shrimp

Atyopsis moluccensis

A big, peaceful fan-feeding shrimp that needs flow + suspended food (never a clean, calm tank) and dies to any copper.

Shrimp / invert tank ✓ Care guide

Crystal Red Shrimp

Caridina cf. cantonensis 'Crystal Red'

Not a hardy cherry shrimp: CRS need soft, acidic, copper-free, rock-stable water — get the water right, then the shrimp.

Shrimp / invert tank ✓ Care guide

Ghost Shrimp

Palaemonetes paludosus

A see-through, cheap-and-cheerful scavenger shrimp — a hardy clean-up crew, though bigger and more opportunistic than a cherry.

Shrimp / invert tank ✓ Care guide

Rabbit Snail

Tylomelania gemmifera

A big, droopy-faced grazing snail with real charm — slow-moving, slow-breeding, and a tidy algae/detritus worker.

Shrimp / invert tank ✓ Care guide