Glass knifefish vs Indonesian snakehead: can they live together?

Verdict: Not recommended

  • The Indonesian snakehead is best kept in a species tank.
  • The Indonesian snakehead is aggressive towards other fish.
  • The Glass knifefish is best kept in a species tank.
  • The Glass knifefish is aggressive towards other fish.
  • An adult Indonesian snakehead is about 4 times the length of a Glass knifefish and may eat it.
  • Both are comfortable at 23–28°C (73–82°F).
  • A pH of 6.5–7.5 suits both.

Side by side

Glass knifefishIndonesian snakehead
Adult size35 cm (14 in)130 cm (51 in)
Minimum tank210 L (55 US gal)–
Temperature23–28°C (73–82°F)22–28°C (72–82°F)
pH6.0–7.56.5–7.5
Hardness2–15 dGH (36–268 ppm)–
TemperamentAggressiveAggressive
Community tankNot suitableNot suitable
Care levelDifficultEasy
DietCarnivoreCarnivore

Species profiles