Species profile
Knight Goby
Stigmatogobius sadanundioKnight Goby (Stigmatogobius sadanundio) is a community species for a cycled 30+ gallon freshwater aquarium. Plan for about 4 inches as an adult, 74-82°F water, pH 7-8.2, and advanced care. Match tankmates by water range, adult size, activity level, and feeding needs.
Community leaningAdvanced care
30 galMinimum tank
4 inAdult size
1Schooling minimum
74-82°FTemperature
Water Range
- pH
- 7-8.2
- GH
- 8-20 dGH
- KH
- 5-15 dKH
Behavior
- Temperament
- Moderate
- Fin nipping
- 0/5
- Territory
- 2/5
Diet and Care
- Diet
- carnivore/omnivore
- Diet difficulty
- 3/5
- Care difficulty
- 5/5
Planning Notes
Specialist setup animal; verify freshwater/brackish needs, feeding, and habitat before stocking.
This species may need live, frozen, fresh, or otherwise specialized foods.
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These matches are starting points with overlapping water ranges and lower behavior risk. Always check the full stocking plan, tank size, and group counts before buying.
Run Knight Goby through the checker with your tank size, cycle status, water, group count, and tankmates before buying.
Check my tankCompare this speciesPut Knight Goby beside another profile to compare water range, size, diet, schooling needs, and behavior.
Open comparisonWill plants work?Match Knight Goby against aquarium plants for nibbling, uprooting, cover, flow, and water-range flags.
Open plant matchAsk about my setupAsk Advisor how Knight Goby fits with your current tank, recent logs, plants, and livestock.
Ask AdvisorView native rangeOpen the origins map to see reviewed native-range coordinates and regional context for Knight Goby.
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