Knight Goby
Stigmatogobius sadanundio
What you need to keep a Knight Goby
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pH
7–8.5
Temperature
22–28 °C
Where to buy
Compare prices from SA aquarium shops listing Knight Goby.
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Overview
What to know before you buy.
The Knight Goby is a bottom-dwelling fish with a pale body covered in striking dark spots. It is territorial towards its own kind and other bottom-dwellers, so it's best kept singly or in a large tank with plenty of hiding spots to break lines of sight. While it can adapt to freshwater, it thrives in low-end brackish conditions.
Key traits
Care guide
Keeping Knight Goby healthy in a South African setup.
Tank setup
Size the aquarium to Knight Goby's adult size and activity level. Use robust décor and sight breaks so each fish can hold its own space.
Water parameters
Keep pH 7–8.5 and 22–28°C. Stable parameters matter more than chasing perfect numbers; acclimate new arrivals slowly.
Feeding
Carnivore. Feed small amounts it clears in a couple of minutes, and vary the diet.
Behaviour
Semi-aggressive. Watch it at feeding time and at lights-out to see its real temperament in your tank.
Tankmates
Choose robust tankmates of similar size, and nothing small enough to be eaten. Add Knight Goby last so territories reset.
Breeding
Breeding success with Knight Goby depends on the line and water chemistry; ask your shop about proven pairs.
Community photos
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Market intelligence
Price trends and buyer demand — data only FishHub tracks.
Price tracking started 18 Jul 2026 — chart builds as listings are updated
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