Little Red Cardinalfish

Apogon crassiceps

Fish
IUCN: Least concern

Usual depth1–19 m
Water temperature20–30 °C
Best monthsJanuary, February, and May
How commonOccasional

All species

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 97 records
February: 76 records
March: 38 records
April: 26 records
May: 69 records
June: 20 records
July: 13 records
August: 13 records
September: 53 records
October: 56 records
November: 66 records
December: 22 records

Depth and water temperature

Depth

Mostly recorded at 1–19 m · Deepest record: 51 m

0–10 m: 113 records
10–20 m: 74 records
20–30 m: 13 records
30–40 m: 3 records
40–50 m: 0 records
50–60 m: 1 records

Water temperature

Recorded in surface water of 20–30 °C

20–22 °C: 5 records
22–24 °C: 30 records
24–26 °C: 37 records
26–28 °C: 252 records
28–30 °C: 157 records

Names and classification

English: Little Red Cardinalfish, Ruby Cardinalfish, Transparent Cardinalfish

Names in 2 more languages

Japanese: Akafujitenjikudai, アカフジテンジクダイ
Simplified Chinese: 堅頭天竺鯛, 大目側仔, 大面側仔

Similar species

Obliquebanded cardinalfish
Apogon semiornatus
Flame Cardinalfish
Apogon doryssa
Largetoothed cardinalfish
Cheilodipterus macrodon
Fivelined cardinalfish
Cheilodipterus quinquelineatus
Dog-toothed Cardinalfish
Cheilodipterus isostigma

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
Conservation status as published by GBIF (IUCN Red List).
884 open-data records from 1953 to 2023.
Species data updated October 26, 2026.

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