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Explore all other in our database. Browse detailed care guides, compatibility information, and species data to find the perfect fish for your aquarium.

Showing 1 - 22 of 22 Fish Profiles

African Clawed Frog

Xenopus laevis

Other

12 cm Aggressive

A fully aquatic, highly active amphibian. DO NOT confuse with the peaceful, nano-sized African Dwarf Frog. The African Clawed Frog grows much larger and will voraciously eat any fish or invertebrate that fits in its mouth. They lack teeth and tongues, using their clawed, webbed hands to shovel food into their mouths. They require a tight-fitting lid (they are notorious escape artists) and prefer cooler water, low flow, and smooth substrate to protect their sensitive skin.

African Dwarf Frog

Hymenochirus boettgeri

Other

4 cm Peaceful

A fully aquatic amphibian that is peaceful and highly entertaining. They possess lungs and must regularly dart to the surface to breathe air, so tank height should ideally be under 40cm (15 inches). Due to their poor eyesight, they hunt by smell and tactile vibration, making them slow feeders that can easily starve if housed with fast, aggressive fish. They are social creatures that thrive in small groups.

Amazon Leaf Fish

Monocirrhus polyacanthus

Other

8 cm Peaceful

A master of camouflage that perfectly mimics a dead leaf drifting in the water. This species is an extreme ambush predator with a protruding jaw that can swallow prey up to 75% of its own size. It is a 'specialist' species because nearly all specimens require live food (small fish/shrimp) and refuse dry or frozen foods. Requires acidic, blackwater conditions and zero flow.

Australian Smelt

Retropinna semoni

Other

7.5 cm Peaceful

A slender, silvery schooling fish native to Australia. They are pelagic and found in huge numbers in the wild across freshwater rivers, billabongs, and brackish estuaries. Known for their distinct cucumber-like odor when handled. In the aquarium, they are highly sensitive to handling and require mature, stable water with plenty of open swimming space. Best kept in single-species setups or with very peaceful, temperate tank mates.

Badis (Chameleon Fish)

Badis badis

Other

7 cm Semi-Aggressive

Known as the Chameleon Fish due to its ability to rapidly change color based on mood, environment, and dominance. They are deliberate, slow-moving micro-predators that often refuse dry flakes or pellets, requiring a diet of live or frozen foods (bloodworms, daphnia). They are notorious for decimating dwarf shrimp and small snail populations.

Banded Chromide

Etroplus suratensis

Other

30 cm Semi-Aggressive

The Banded Chromide (or Pearlspot) is a massive, laterally compressed cichlid native to the fresh and brackish estuaries of Southern India and Sri Lanka. Known for its striking greenish-grey body covered in pearly white spots, it is an impressive display fish. They are euryhaline and thrive in hard, alkaline freshwater or brackish setups. As primarily herbivorous grazers and substrate sifters, they will consume soft aquatic plants and require plenty of swimming space.

Bluegill Sunfish

Lepomis macrochirus

Other

25 cm Aggressive

A highly active and intelligent North American native fish. Known for their deep, laterally compressed bodies and the distinctive dark spot at the base of the dorsal fin. They are predatory and territorial, often treated as 'coldwater cichlids' by hobbyists. Because they grow large and are highly active, they require significant swimming space and heavy filtration.

Chinese Algae Eater (CAE)

Gyrinocheilus aymonieri

Other

25 cm Aggressive

Sold widely as a small, peaceful algae-eating juvenile, the Chinese Algae Eater (CAE) undergoes a drastic behavioral and dietary shift as it matures. Growing up to 25cm (10 inches), adults stop eating algae, become highly territorial, and are notorious for attacking slow-moving, flat-sided fish (like Angelfish, Discus, and Goldfish) to feed on their nutrient-rich slime coat. Best kept in fast-flowing river setups with robust, fast-moving tank mates.

Flyspeck Hardyhead

Craterocephalus stercusmuscarum

Other

7 cm Peaceful

The Flyspeck Hardyhead is an active, slender schooling fish native to the freshwater streams and lakes of Australia. Named for the distinct rows of tiny black dots (resembling fly specks) covering its golden-bronze body, it is a highly peaceful species. They are excellent for community tanks, requiring plenty of swimming space, and offer the unique benefit of constantly grazing on algae and aquatic insects.

Green Sunfish

Lepomis cyanellus

Other

25 cm Highly Aggressive

A robust, highly adaptable, and extremely aggressive North American native fish. Known for its vivid blue-green iridescent facial lines and yellow-margined fins. Due to its large mouth, heavy build, and extreme territoriality, it is often considered the 'Oscar of native fish' and should be kept singly or with large, robust tank mates in spacious setups.

Largemouth Bass

Micropterus salmoides

Other

50 cm Aggressive

An iconic North American game fish occasionally kept by 'monster fish' enthusiasts. They are highly intelligent, robust, and voracious apex predators with cavernous mouths capable of swallowing surprisingly large prey. Because of their massive adult size, rapid growth, and heavy bioload, they are strictly suited for massive custom aquariums or indoor/outdoor ponds.

Longear Sunfish

Lepomis megalotis

Other

18 cm Aggressive

A strikingly beautiful North American native fish often likened to a cold-water cichlid. Known for their brilliant blue and orange coloration and elongated opercular flaps ('ears'). They are highly territorial, predatory, and require a large, unheated or cool-water aquarium with plenty of structure.

Orange Chromide

Etroplus maculatus

Other

8 cm Mostly Peaceful

The Orange Chromide is a peaceful, medium-sized cichlid native to southern India and Sri Lanka. Uniquely, it is one of the very few cichlid species naturally found in estuaries and brackish lagoons. While they can adapt to hard freshwater, they thrive and display their best colors in slightly brackish water. They are social shoalers when young, forming strong, territorial pairs to breed and care for their fry.

Orangespotted Sunfish

Lepomis humilis

Other

10 cm Semi-Aggressive

The Orangespotted Sunfish is one of the smallest and most colorful North American sunfishes, making it an excellent choice for unheated or temperate aquariums. They are hardy, highly interactive, and possess big personalities. Like most centrarchids, they are territorial micropredators that will hunt small invertebrates. Males dig nests in the substrate during breeding season.

Pumpkinseed

Lepomis gibbosus

Other

20.5 cm Aggressive

A beautiful but aggressive North American native sunfish. Known for its vivid orange, blue, and green speckling and the distinctive red spot on its gill cover. As a temperate/coldwater species, it does not require a heater. They are highly territorial, intelligent, and have large appetites, functioning much like Central American Cichlids in the aquarium.

Redbreast Sunfish

Lepomis auritus

Other

20 cm Aggressive

A colorful, North American native freshwater fish known for its bright orange-red belly and an elongated, solid black opercular flap ('ear'). As a temperate species, they thrive in unheated aquariums. They are aggressive, territorial predators that will dig nests in the substrate and consume any tank mate small enough to fit in their mouths.

Redear Sunfish

Lepomis microlophus

Other

25 cm Semi-Aggressive

A robust North American native fish commonly known as the 'Shellcracker' due to its specialized pharyngeal teeth used to crush snails and mollusks. They are a temperate (coldwater) species that makes an excellent subject for a large native unheated aquarium. They are semi-aggressive, territorial, and will consume any tank mate small enough to fit in their mouths.

Scarlet Badis

Dario dario

Other

2 cm Mostly Peaceful

One of the smallest known aquarium fish, resembling a tiny jewel. Males display brilliant vertical red and iridescent blue stripes. While beautiful, they are known for being extremely picky eaters, often refusing dry foods and requiring live or frozen micro-foods (Daphnia, Baby Brine Shrimp). Males act like tiny Cichlids and will stake out territories.

Smallmouth Bass

Micropterus dolomieu

Other

45 cm Aggressive

A popular North American freshwater gamefish sometimes kept by dedicated hobbyists in massive coldwater aquariums. They are powerful, highly active apex predators that require exceptional filtration, high water flow, and massive tank footprints. They will consume any tank mate that can fit into their large mouths.

Tiger Muskie

Esox masquinongy x lucius

Other

115 cm Highly Aggressive

A sterile hybrid of the Muskellunge and Northern Pike. It is a massive, voracious apex predator that grows incredibly fast. Due to its extreme size, explosive ambush hunting style, and strictly piscivorous diet, it is only suitable for the largest custom aquariums or indoor ponds.

Warmouth

Lepomis gulosus

Other

25 cm Aggressive

The Warmouth is a robust, highly predatory North American sunfish. Characterized by its cavernous mouth and dark, mottled brown coloration, it closely resembles a Rock Bass. It is highly aggressive and territorial, requiring a spacious tank. It will rapidly consume any tank mate small enough to fit in its large mouth and thrives in heavily structured aquariums mimicking slow-moving, weed-choked waters.

Yellow Perch

Perca flavescens

Other

25 cm Semi-Aggressive

A popular North American gamefish and temperate aquarium species. Yellow Perch are active, shoaling predators recognized by their brass-colored bodies and dark vertical bars. They require large, well-filtered coldwater setups and will eagerly consume any tankmate that fits in their mouth.