Advanced freshwater fish: F
All advanced freshwater fish whose common name starts with F, in alphabetical order. Each card links to its care guide.
24 species
Fahaka puffer
Tetraodon lineatus
Freshwater17.7 in (45 cm) · 119 gal (450 L)75–82°F (24–28°C)
Fairy dwarf cichlid
Biotoecus opercularis
Freshwater1.6 in (4 cm) · 20 gal (75 L)77–86°F (25–30°C)
False chocolate gourami
Parasphaerichthys lineatus
Freshwater1 in (2.5 cm) · 11 gal (40 L)68–79°F (20–26°C)False hemiodus
Argonectes longiceps
Freshwater11.8 in (30 cm) · 159 gal (600 L)75–84°F (24–29°C)
Fat oscar
Astronotus crassipinnis
Freshwater11.4 in (29 cm) · 132 gal (500 L)73–82°F (23–28°C)
Featherfin cichlid
Cyathopharynx furcifer
Freshwater7.9 in (20 cm) · 119 gal (450 L)75–81°F (24–27°C)
Finespot hillstream loach
Sewellia analis
Freshwater2.4 in (6 cm) · 24 gal (90 L)68–75°F (20–24°C)
Fire eel
Mastacembelus erythrotaenia
Freshwater39.4 in (100 cm) · 132 gal (500 L)75–82°F (24–28°C)
Firewood catfish
Sorubimichthys planiceps
Freshwater59.1 in (150 cm) · 793 gal (3,000 L)72–82°F (22–28°C)
Flame callochromis
Callochromis pleurospilus
Freshwater3.9 in (10 cm) · 66 gal (250 L)75–81°F (24–27°C)
Flaming arrow goby
Sicyopus zosterophorus
Freshwater1.8 in (4.5 cm) · 14 gal (54 L)73–81°F (23–27°C)
Foa's featherfin
Cyathopharynx foai
Freshwater7.9 in (20 cm) · 119 gal (450 L)75–81°F (24–27°C)
Forest halfbeak
Hemirhamphodon pogonognathus
Freshwater3.5 in (9 cm) · 34 gal (130 L)75–82°F (24–28°C)
Fork-tailed loach
Vaillantella maassi
Freshwater4.7 in (12 cm) · 46 gal (175 L)73–84°F (23–29°C)
Fowler's hemiodus
Bivibranchia fowleri
Freshwater7.5 in (19 cm) · 106 gal (400 L)75–84°F (24–29°C)
Frail gourami
Ctenops nobilis
Freshwater3.9 in (10 cm) · 24 gal (90 L)68–79°F (20–26°C)
Freckled lizard loach
Formosania stigmata
Freshwater3.9 in (10 cm) · 25 gal (95 L)61–75°F (16–24°C)
Freshwater blenny
Salaria fluviatilis
Freshwater5.9 in (15 cm) · 25 gal (95 L)54–68°F (12–20°C)
Freshwater moray eel
Gymnothorax polyuranodon
FreshwaterBrackish35.4 in (90 cm) · 159 gal (600 L)73–82°F (23–28°C)
Freshwater needlefish
Xenentodon cancila
Freshwater13.8 in (35 cm) · 85 gal (320 L)66–86°F (19–30°C)
Freshwater pipefish
Doryichthys martensii
Freshwater5.9 in (15 cm) · 32 gal (120 L)75–82°F (24–28°C)
Freshwater sole
Brachirus panoides
Freshwater7.9 in (20 cm) · 55 gal (208 L)73–82°F (23–28°C)
Frontosa cichlid
Cyphotilapia frontosa
Freshwater12.6 in (32 cm) · 227 gal (860 L)73–81°F (23–27°C)
Fusco hap
Nimbochromis fuscotaeniatus
Freshwater9.8 in (25 cm) · 74 gal (280 L)75–82°F (24–28°C)
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