Saltwater aquarium fish: O
All saltwater fish whose common name starts with O, in alphabetical order. Each card links to its care guide.
8 species and 17 varieties
Ocellaris clownfish
Amphiprion ocellaris
Saltwater3.1 in (8 cm) · 20 gal (75 L)75–82°F (24–28°C)17 varieties
One-spot foxface
Siganus unimaculatus
Saltwater7.9 in (20 cm) · 70 gal (265 L)75–81°F (24–27°C)
Orange skunk clownfish
Amphiprion sandaracinos
Saltwater5.5 in (14 cm) · 30 gal (115 L)75–82°F (24–28°C)
Orange-spot prawn goby
Amblyeleotris guttata
Saltwater4.3 in (11 cm) · 30 gal (114 L)72–79°F (22–26°C)
Orangeshoulder tang
Acanthurus olivaceus
Saltwater13.8 in (35 cm) · 180 gal (680 L)75–82°F (24–28°C)
Orbiculate batfish
Platax orbicularis
Saltwater19.7 in (50 cm) · 185 gal (700 L)75–81°F (24–27°C)
Orbiculate cardinalfish
Sphaeramia orbicularis
Saltwater3.9 in (10 cm) · 30 gal (115 L)75–82°F (24–28°C)
Orchid dottyback
Pseudochromis fridmani
Saltwater2.8 in (7 cm) · 29 gal (110 L)72–79°F (22–26°C)
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