Species Profiles
2742 articles- Hartzfeld's Cardinalfish (Apogon hartzfeldii) Care GuideApogon hartzfeldii is a benthic, nocturnal cardinalfish of the western Indo-Pacific that shelters on sheltered reef flats and shallow lagoon
- Five-Lined Cardinalfish (Cheilodipterus quinquelineatus) Care GuideCheilodipterus quinquelineatus is an Indo-Pacific cardinalfish with five black lines and a yellow tail base; it preys on small crustaceans a
- Iridescent Cardinalfish (Pristiapogon kallopterus) Care GuidePristiapogon kallopterus is a widespread Indo-Pacific cardinalfish of lagoon and seaward reefs that feeds at night on small crustaceans.
- Threadfin Cardinalfish (Zoramia leptacantha) Care GuideZoramia leptacantha is a small, translucent Indo-Pacific cardinalfish that forms dense aggregations above branching coral and breeds in mono
- Black-Striped Cardinalfish (Ostorhinchus nigrofasciatus) Care GuideOstorhinchus nigrofasciatus is an Indo-Pacific cardinalfish with alternating black and yellow stripes that lives singly or in pairs under re
- Yellow-Striped Cardinalfish (Ostorhinchus cyanosoma) Care GuideOstorhinchus cyanosoma is a small Indo-Pacific cardinalfish with orange-yellow stripes that forms aggregations on sheltered reefs and is bre
- Ochre-striped Cardinalfish (Apogon compressus) Care GuideApogon compressus is a nocturnal Indo-West Pacific cardinalfish that shelters near branching corals; juveniles mimic Cheilodipterus species.
- Pearl Cardinalfish (Apogon margaritophorus) Care GuideApogon margaritophorus is a small nocturnal cardinalfish of shallow Western Pacific coral reefs, a mouthbrooder kept in peaceful marine aqua
- Orbiculate Cardinalfish (Sphaeramia orbicularis) Care GuideSphaeramia orbicularis is an Indo-Pacific cardinalfish of sheltered coastal shores and mangroves, reaching about 10 cm.
- Circled Dragonet (Synchiropus circularis) Care GuideSynchiropus circularis is a small Western Pacific dragonet of sand-rubble bottoms on seaward reefs, a benthic invertebrate feeder.
- Moyer's Dragonet (Synchiropus moyeri) Care GuideSynchiropus moyeri is a Western Pacific dragonet of coastal reef slopes reaching about 7.5 cm, a benthic invertebrate feeder.
- Starry Dragonet (Synchiropus stellatus) Care GuideSynchiropus stellatus is an Indian Ocean dragonet of coastal reefs reaching about 7.5 cm, a benthic invertebrate feeder.
- Ocellated Dragonet (Synchiropus ocellatus) Care GuideSynchiropus ocellatus is a small Pacific dragonet of sheltered rocky reefs, a benthic invertebrate feeder reaching about 9 cm.
- Bridled Goby (Coryphopterus glaucofraenum) Care GuideCoryphopterus glaucofraenum is a Western Atlantic sand-dwelling goby reaching about 8 cm, common over white sand near reefs.
- Threadfin Reefgoby (Priolepis nuchifasciata) Care GuidePriolepis nuchifasciata is a small cryptic Western Pacific reefgoby that lives in small caves, reaching about 4 cm.
- Spikefin Goby (Discordipinna griessingeri) Care GuideDiscordipinna griessingeri is a tiny Indo-Pacific goby with a tall spiky dorsal fin, reaching about 3 cm.
- White-line Dwarfgoby (Eviota albolineata) Care GuideEviota albolineata is a small Pacific dwarfgoby of shallow lagoon and channel reefs, reaching about 3.6 cm.
- Spotted Dwarfgoby (Eviota guttata) Care GuideEviota guttata is a tiny Indian Ocean dwarfgoby reaching about 3.2 cm, living on shallow mixed coral and algal reefs.
- Okinawa Goby Care GuideTrimma okinawae is a tiny Western Pacific pygmy goby of clear coastal reefs that hovers in caves and is a bi-directional sex changer.
- Pink Eye Goby Care GuideTrimma cana is a tiny Western Pacific pygmy goby found on hard corals of steep outer reef slopes, suited to peaceful nano reef tanks.
- Sixspot Sleeper Goby Care GuideValenciennea sexguttata is an Indo-Pacific sand-sifting goby with blue spots that lives in monogamous pairs within burrows under rocks.
- Black-Lined Sleeper Goby Care GuideValenciennea helsdingenii is an Indo-West Pacific sand-sifting goby with two dark stripes; it is a relatively rare, monogamous mound-builder
- Ward's Tiger Goby Care GuideValenciennea wardii is a rare Indo-Pacific sand-sifting goby with brown body bars; it occurs in pairs on sandy lagoon and silty reef substra
- Golden Headed Sleeper Goby Care GuideValenciennea strigata is an Indo-Pacific sand-sifting goby that feeds by passing mouthfuls of sand and forms monogamous burrow-guarding pair
- Sharknose Goby Care GuideElacatinus evelynae is a small Western Atlantic cleaner goby that removes ectoparasites from larger reef fish and pairs well in nano marine
- Imperial Tiger Hap (Protomelas) Care GuideProtomelas sp. "Steveni Imperial" is a Lake Malawi haplochromine trade form with blue-and-orange striped males, kept as a semi-aggressive op
- True Black Star Pleco L173 Care GuideHypancistrus sp. L173 is a sought-after Rio Xingu loricariid resembling a larger zebra pleco with wavy lines, a carnivore needing warm, soft
- King Tiger Pleco L066 Care GuideHypancistrus sp. L066 is a black-and-yellow Rio Xingu loricariid pleco (linked to Hypancistrus seideli), a cave-dwelling carnivore for warm,
- Thick-Skin Haplochromis Care GuideHaplochromis sp. "Thickskin" is an undescribed Lake Victoria haplochromine cichlid in the aquarium trade, a colourful semi-aggressive matern
- Lion's Cove Afra (Cynotilapia) Care GuideCynotilapia sp. "Lion's Cove" is an aquarium-trade location form of the Lake Malawi mbuna genus Cynotilapia, kept as a semi-aggressive rock-
- Venezuela Black Cory (Corydoras sp. CW084) Care GuideA dark, near-solid-black cory of the bronze (aeneus / venezuelanus) complex from Venezuelan coastal drainages, traded as Venezuela Black (CW
- CW051 Cory (Corydoras sp. CW051) Care GuideAn undescribed Corydoras from the upper Rio Negro traded as CW051 (Black-saddled / New Panda Cory), a peaceful sand-sifting shoaler for soft
- Super Schwartzi Cory (Corydoras sp. CW028) Care GuideAn undescribed Brazilian/Peruvian Corydoras with bold, near-continuous flank lines and white spines, traded as Super Schwartzi (CW028).
- Gold Similis Cory (Corydoras sp. CW021) Care GuideAn undescribed Corydoras of the similis / axelrodi complex traded as CW021 Gold Similis, a peaceful sand-sifting shoaler for soft-water comm
- Gold Laser / Orange Stripe Cory (Corydoras sp. CW010) Care GuideAn undescribed Peruvian Corydoras of the bronze (aeneus) group with a bright dorsal stripe, traded as CW010 Gold Laser, Gold Stripe or Orang
- Mamore Apisto (Apistogramma mamorensis) Care GuideA Bolivian dwarf cichlid trade form from the rio Mamore drainage, kept as a bottom-dwelling, semi-aggressive Apistogramma in soft, planted a
- Yucatan Sailfin Molly Care GuidePoecilia velifera is the largest sailfin molly, a brackish-tolerant livebearer endemic to the Yucatan Peninsula that needs hard, alkaline wa
- Yellow Congo Tetra Care GuidePhenacogrammus aurantiacus is a small African tetra from the Congo and Ogooue basins, kept as a peaceful mid-water schooling fish.
- Xingu Tetra Care GuideMoenkhausia xinguensis is a South American tetra from the Xingu River basin in Brazil, a peaceful schooling characid.
- Wolf Cichlid Care GuideParachromis dovii is a large piscivorous cichlid from Central America that reaches 72 cm and requires a very large tank for an apex predator
- Pygmy Possum Wrasse Care GuideWetmorella nigropinnata is a small, secretive Indo-Pacific reef wrasse that hides in caves and crevices, reaching about 8 cm.
- White-Banded Possum Wrasse Care GuideWetmorella albofasciata is a small, secretive Indo-Pacific reef wrasse that lives in caves and crevices, reaching about 6 cm.
- Velvet Red Swordtail Care GuideThe Velvet Red is a solid deep-red colour strain of the green swordtail, Xiphophorus hellerii, an active livebearer from Central America nee
- Veiltail Goldfish Care GuideThe Veiltail is a fancy ornamental strain of the goldfish (Carassius auratus) with a long, flowing double tail and a slow, delicate swimming
- Variatus Platy Care GuideXiphophorus variatus is a hardy livebearer endemic to eastern Mexico, slightly larger than the common platy and suited to peaceful community
- Tuxedo Guppy Care GuideTuxedo is a selectively bred colour strain of the guppy, Poecilia reticulata, a small, hardy, peaceful livebearer popular in community aquar
- Tropheus sp. "Ikola" Care GuideIkola geographic population of the Lake Tanganyika genus Tropheus, a herbivorous mouthbrooding cichlid that must be kept in a large colony.
- Tropheus duboisi "Karilani" Care GuideKarilani Island geographic population of Tropheus duboisi, a herbivorous mouthbrooding cichlid endemic to Lake Tanganyika that requires a la
- Tropheops 'Red Cheek' Care GuideTropheops sp. 'Red Cheek' is an undescribed Lake Malawi mbuna, an aggressive rock-dwelling algae grazer.
- Topmouth Gudgeon Care GuidePseudorasbora parva is a hardy East Asian cyprinid, listed as an invasive alien species of concern in the EU.