Blue Crayfish (Procambarus alleni)
Procambarus alleni is a 10–12 cm electric blue Florida crayfish that is easy to keep but escapes, digs and eats plants and slow fish, so it suits…
Read more →
Striped Headstander (Anostomus anostomus)
Anostomus anostomus is a 12–16 cm gold-and-black striped grazer from fast Amazon rivers that swims head-down, likes current and can be quarrelsom…
Read more →
African Red-Eyed Tetra (Arnoldichthys spilopterus)
Arnoldichthys spilopterus is a 7–10 cm shimmering schooling tetra from Nigeria with a bright red eye, ideal for a large, peaceful community tank.
Read more →
Flying Fox (Epalzeorhynchos kalopterus)
Epalzeorhynchos kalopterus is a 12–15 cm striped algae eater from Southeast Asia that grazes hard, defends its patch and is easily confused with…
Read more →
Motoro Stingray (Potamotrygon motoro)
Potamotrygon motoro is a 45 cm-wide freshwater stingray with eye-spot markings that needs a huge floor area, spotless water and a careful keeper.
Read more →
Spotted Scat (Scatophagus argus)
Scatophagus argus is a hardy, hungry, 20–30 cm brackish fish that starts life in rivers and finishes it in near-marine water, so plan for a big t…
Read more →
Archerfish (Toxotes jaculatrix)
Toxotes jaculatrix is a 20–25 cm brackish-water hunter that knocks insects off branches with a jet of water, and it needs a big, open-topped tank…
Read more →
Blood Parrot Cichlid (Hybrid)
The blood parrot is a man-made hybrid cichlid that grows to 15–20 cm: bright, friendly and long-lived, but its beak-shaped mouth changes how you…
Read more →
Horned Nerite Snail (Clithon corona)
Clithon corona is a 1–2 cm spiky nerite snail and one of the best algae cleaners for nano and shrimp tanks: it cannot overrun the tank, but it do…
Read more →
Silver Arowana (Osteoglossum bicirrhosum)
Osteoglossum bicirrhosum is an Amazon surface predator that grows to 90 cm or more: spectacular, intelligent and a famous jumper, but it needs a ta…
Read more →
Ryukin Goldfish (Carassius auratus)
The ryukin is a deep-bodied, hump-backed fancy goldfish that grows to 15–20 cm: hardy, friendly and long-lived, but it needs a big, cool, heavily…
Read more →
Peacock Eel (Macrognathus siamensis)
Macrognathus siamensis is a 20–30 cm spiny eel from Thai and Mekong rivers: the most community-friendly spiny eel, as long as it gets soft sand,…
Read more →
Fire Eel (Mastacembelus erythrotaenia)
Mastacembelus erythrotaenia is a Southeast Asian spiny eel that grows to 60–90 cm: a gentle, intelligent burrower that needs a huge sand-bottomed…
Read more →
Dwarf Orange Crayfish (Cambarellus patzcuarensis)
Cambarellus patzcuarensis 'Orange', the CPO, is a 3–4 cm Mexican dwarf crayfish: bright, busy, safe with most fish and plants, and easy to breed…
Read more →
Bumblebee Goby (Brachygobius doriae)
Brachygobius doriae is a 3–4 cm striped goby from the mangroves and estuaries of Borneo: bold, territorial, a picky meat-eater, and happiest in h…
Read more →
Vampire Shrimp (Atya gabonensis)
Atya gabonensis is a 10–15 cm filter-feeding shrimp from West African and South American rivers: gentle, shy, and completely dependent on current…
Read more →
Checkerboard Cichlid (Dicrossus filamentosus)
Dicrossus filamentosus is a blackwater specialist from the Rio Negro and Orinoco: a 6–8 cm checkerboard dwarf that demands extremely soft, acidic…
Read more →
Altifrons Eartheater (Geophagus altifrons)
Geophagus altifrons is the high-foreheaded Amazon eartheater: 20–25 cm, warm soft water, a deep sand bed, and a gentler reputation than the pearl…
Read more →
Pearl Cichlid (Geophagus brasiliensis)
Geophagus brasiliensis is a 20–30 cm coastal Brazilian cichlid: pearl-spangled, sand-sifting, and far more adaptable and territorial than Amazon…
Read more →
Demon Eartheater (Satanoperca jurupari)
Satanoperca jurupari is a 20–25 cm Amazon sand-sifter that takes mouthfuls of substrate and is a delayed mouthbrooder — give it a deep sand bed…
Read more →
Uaru Cichlid (Uaru amphiacanthoides)
Uaru amphiacanthoides is a 25–30 cm Amazon cichlid that lives like a plant-eating discus cousin: warm, clean, soft water, a huge tank, and vegeta…
Read more →
African Butterfly Cichlid (Anomalochromis thomasi)
Anomalochromis thomasi is a West African forest-stream dwarf that pair-spawns on leaves and wood in soft, vegetated water — not an Apistogramma,…
Read more →
Steindachner's Apisto (Apistogramma steindachneri)
Apistogramma steindachneri is the bigger, more adaptable Guianan apisto: 7–9 cm, still a sand-and-cave dwarf in soft to moderately soft water —…
Read more →
Viejita Apisto (Apistogramma viejita)
Apistogramma viejita is a Colombian dwarf cichlid sold in red and yellow lines: still a leaf-litter, cave, soft-water harem fish — the colours ar…
Read more →