Species Profiles
2402 articles- Checkerboard Wrasse Care GuideHalichoeres hortulanus is a large Indo-Pacific reef wrasse with a checkerboard pattern; a carnivore that eats hard-shelled invertebrates suc
- Gold Pristella Tetra Care GuideThe Gold Pristella is a selectively bred form of Pristella maxillaris, the X-ray tetra. A hardy, very peaceful shoaling characin from northe
- Red Hump Eartheater Care GuideGeophagus steindachneri is a Colombian eartheater cichlid whose dominant males develop a pronounced nuchal hump. A hardy maternal mouthbrood
- Parnaiba Eartheater (Geophagus parnaibae) Care GuideGeophagus parnaibae is an eartheater endemic to the Rio Parnaiba drainage of Brazil, found in sandy brooks and pools.
- Doctor Fish (Garra rufa) Care GuideGarra rufa is a hardy Middle Eastern cyprinid that grazes biofilm and is widely known from fish-spa pedicures.
- Hawaiian Dascyllus Care GuideDascyllus albisella is a damselfish endemic to the Hawaiian Islands and Johnston Island, with dark juveniles bearing a white side spot and g
- Argentine Pearl Killifish Care GuideAustrolebias nigripinnis is an annual killifish of the lower Parana and Uruguay basins, formerly Cynolebias nigripinnis, with dark males dot
- Menezes Pike Cichlid Care GuideCrenicichla menezesi is a medium-sized pike cichlid from rivers of northeastern Brazil, reaching about 19 cm.
- Schwartz's Corydoras Care GuideCorydoras schwartzi is a peaceful patterned armored catfish endemic to the Rio Purus drainage in Brazil, often misidentified in the aquarium
- Cochu's Blue Tetra Care GuideBoehlkea fredcochui, Cochu's blue tetra, is an active translucent-blue characiform from the Amazon basin best kept in larger groups.
- Clown Barb Care GuideBarbodes everetti, the clown barb, is a large peaceful cyprinid from forest streams of Borneo that needs a roomy planted tank.
- Blue Diamond Discus Care GuideBlue Diamond Discus is a selectively bred solid-blue strain of Symphysodon, a demanding warm-water cichlid kept in groups.
- Brunei Beauty (Betta macrostoma) Care GuideBetta macrostoma is a large mouthbrooding wild betta endemic to Brunei and northern Sarawak, kept in cool, soft, acidic water.
- Snakehead Betta (Betta channoides) Care GuideBetta channoides is a small mouthbrooding wild betta endemic to the Mahakam basin of eastern Borneo, kept in soft, acidic blackwater setups.
- Betta albimarginata Care GuideBetta albimarginata is a small mouthbrooding wild betta from blackwater forest streams of East Kalimantan, Borneo.
- Rubescens Peacock Care GuideThe Rubescens Peacock is a captive red line-bred Aulonocara strain derived from Lake Malawi peacock cichlids.
- Dragon Blood Peacock Care GuideThe Dragon Blood Peacock is a captive line-bred Aulonocara colour strain derived from peacock cichlids of Lake Malawi.
- Apistogramma viejita Care GuideApistogramma viejita is a small Colombian dwarf cichlid from the upper Meta basin of the Orinoco system, kept in soft, acidic water.
- Putumayo Apisto (Apistogramma sp. "Putumayo") Care GuideApistogramma sp. "Putumayo" is an undescribed dwarf cichlid from the Putumayo river on the Colombia-Peru border, kept under a trade designat
- Pebas Apisto (Apistogramma sp. "Pebas") Care GuideApistogramma sp. "Pebas" is an undescribed Peruvian dwarf cichlid from the Pebas region, kept under a trade designation.
- Mamore Apisto (Apistogramma sp. "Mamore") Care GuideApistogramma sp. "Mamore" is an undescribed Bolivian dwarf cichlid associated with the Mamore river drainage, kept under a trade designation
- Galaxy Apisto (Apistogramma sp. "Galaxy") Care GuideApistogramma sp. "Galaxy" is an undescribed dwarf cichlid kept in the aquarium hobby under a trade designation.
- D39 Rotpunkt Apisto (Apistogramma sp. "D39 Rotpunkt") Care GuideApistogramma sp. "D39 Rotpunkt" is an undescribed dwarf cichlid in the Apistogramma regani group, kept under a trade designation.
- Umbrella Cichlid "Opal" (Apistogramma borellii) Care GuideA peaceful southern dwarf cichlid that tolerates cooler water; the Opal form is a bred colour strain of Apistogramma borellii.
- Agassiz's Dwarf Cichlid "Gold" (Apistogramma agassizii) Care GuideA golden ornamental form of Apistogramma agassizii, an Amazonian dwarf cichlid kept in soft, warm water with leaf litter and shade.
- Agassiz's Dwarf Cichlid "Blue" (Apistogramma agassizii) Care GuideA blue ornamental form of Apistogramma agassizii, an Amazonian dwarf cichlid that prefers soft, warm water with leaf litter and shade.
- Long-Fin Albino Bristlenose Care GuideThe long-fin albino bristlenose is a captive-bred ornamental Ancistrus form with extended fins and reduced pigment, sharing standard bristle
- Starlight Bristlenose L183 Care GuideAncistrus dolichopterus (L183) is a black-water bristlenose from the Rio Negro that needs soft, acidic water and a mature, well-flowing aqua
- Calico Bristlenose Care GuideThe calico bristlenose is a captive-bred multicolour Ancistrus, a peaceful algae-grazing loricariid catfish for community tanks.
- Altum Angelfish Care GuidePterophyllum altum is the tallest angelfish, a blackwater specialist from the Orinoco and upper Rio Negro requiring soft, acidic water.
- Albino Discus Care GuideThe albino discus is a selectively bred colour form of Symphysodon, a tall-bodied Amazonian cichlid requiring warm, soft, stable water.
- Neon Goby Care GuideElacatinus oceanops is a small Western Atlantic cleaner goby with a bright blue stripe that removes parasites from larger fish.
- Yellowtail Tamarin Wrasse Care GuideAnampses meleagrides is an Indo-Pacific wrasse; females are black with white spots and a yellow tail, males iridescent. A delicate feeder ne
- Mediterranean Rainbow Wrasse Care GuideCoris julis is a temperate wrasse of the Mediterranean and eastern Atlantic. It buries in sand at night and is a protogynous hermaphrodite n
- Yellowtail Coris Care GuideCoris gaimard is an Indo-Pacific wrasse; vivid orange juveniles transform into blue-green adults with a yellow tail. A sand-burying sifter o
- Humphead Wrasse Care GuideCheilinus undulatus is the largest living wrasse, reaching over 2 m. It is CITES II listed and IUCN Endangered, suitable only for very large
- Lubbock's Fairy Wrasse Care GuideCirrhilabrus lubbocki is a small western Pacific fairy wrasse of outer reefs that feeds on zooplankton; it is peaceful and reef compatible.
- Blue-Side Fairy Wrasse Care GuideCirrhilabrus cyanopleura is an Indo-West Pacific fairy wrasse that schools above reefs and feeds on zooplankton; it is peaceful and reef com
- Solar Fairy Wrasse Care GuideCirrhilabrus solorensis is an Indonesian fairy wrasse that lives in harems on coral reefs and feeds on zooplankton; it is peaceful and reef
- Christmas Wrasse Care GuideHalichoeres claudia is a widespread western Pacific reef wrasse long confused with H. ornatissimus; it feeds on small invertebrates and buri
- Slippery Dick Wrasse Care GuideHalichoeres bivittatus is a common western Atlantic reef wrasse and protogynous hermaphrodite that feeds on benthic invertebrates and small
- Puddingwife Wrasse Care GuideHalichoeres radiatus is a large western Atlantic reef wrasse reaching about 51 cm that feeds on hard-shelled invertebrates and needs a very
- Adorned Wrasse Care GuideHalichoeres cosmetus is an Indian Ocean reef wrasse feeding on benthic invertebrates; it is reef compatible and needs a sandy substrate.
- Ornate Wrasse Care GuideHalichoeres ornatissimus is a Hawaiian wrasse that feeds on small benthic invertebrates and is kept in reef aquariums with a sand bed for bu
- Dusky Wrasse Care GuideHalichoeres marginatus is a wide-ranging Indo-Pacific reef wrasse that changes colour with age and feeds on small invertebrates and fish egg
- Richmond's Wrasse Care GuideHalichoeres richmondi is a central Indo-Pacific reef wrasse that feeds on small benthic invertebrates and buries in sand at night.
- Blue Ring Angel (Pomacanthus annularis) Care GuidePomacanthus annularis, the bluering angelfish, is a large Indo-West Pacific angel with a blue ring above the gill cover that feeds on sponge
- Half-banded Angel (Genicanthus semifasciatus) Care GuideGenicanthus semifasciatus, the Japanese swallow, is a deep-water reef-safe angel from the Western Pacific, a protogynous hermaphrodite that
- Fisher's Angel Care GuideCentropyge fisheri is a small Indo-Pacific dwarf angelfish, deep blue to orange-brown with blue-margined fins, among the more peaceful dwarf
- Rusty Angel Care GuideCentropyge ferrugata is a western Pacific dwarf angelfish with a brownish-orange body and black spots, considered relatively reef-tolerant.