๐Ÿ  Fish Compatibility Guide

Can Sterbai Cory and Watchman Goby Live Together?

Updated September 23, 2026 ยท FishCare AI Editorial Team

โŒ Not Compatible โ€” Compatibility Score: 0/100
0/100 โ€” Not Compatible

Sterbai Cory and Watchman Goby Compatibility Overview

Sterbai Cory and Watchman Goby are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Sterbai Cory wants 6.0โ€“7.6 and Watchman Goby wants 8.1โ€“8.4. Review the behavior and water details before deciding whether to attempt the pairing.

Compatibility factors for Sterbai Cory and Watchman Goby
FactorSterbai CoryWatchman GobyVerdict
Temperature75โ€“82ยฐF72โ€“82ยฐFโœ… 75โ€“82ยฐF
pH Range6.0โ€“7.68.1โ€“8.4โŒ No overlap
Temperamentpeacefulpeacefulโœ… Compatible
Adult Size2.6 in4.0 inโœ… Similar
Min. Group6+1+See below
Min. Tank Size55 gallons (for both species)โ€”

Compatibility Positives

A stable shared temperature range is available.
Temperament risk is relatively low when normal group sizes are maintained.

Incompatibility Reasons

One of these is a marine species and the other is not; they cannot share one aquarium.
Their pH ranges do not meet: Sterbai Cory wants 6.0โ€“7.6 and Watchman Goby wants 8.1โ€“8.4.

Species Profiles

Sterbai Cory โ€” Corydoras sterbai

Sterbai Cory and Watchman Goby compatibility โ€” Sterbai Cory

The Sterbai Cory, known for its dark brown coloration with silver spots, is a popular bottom-dwelling fish. With a peaceful temperament, it is well-suited for community tanks. It requires a well-planted tank with plenty of hiding spots and moderate water flow. Regular water changes and a balanced diet are essential for their health.

โ†’ Full Sterbai Cory care guide

Watchman Goby โ€” Cryptocentrus cinctus

Sterbai Cory and Watchman Goby compatibility โ€” Watchman Goby

The Watchman Goby is a peaceful and colorful addition to the marine aquarium. It is known for its slender body and distinctive yellow and dark spot pattern. These gobies are often found in pairs or small groups and require a well-maintained saltwater tank with plenty of hiding spots. With proper care, they can thrive for several years.

โ†’ Full Watchman Goby care guide

Frequently Asked Questions

Can Sterbai Cory live with Watchman Goby?

Generally not recommended. Sterbai Cory and Watchman Goby are generally not recommended to be housed together. One of these is a marine species and the other is not; they cannot share one aquarium. Their pH ranges do not meet: Sterbai Cory wants 6.0โ€“7.6 and Watchman Goby wants 8.1โ€“8.4. Review the behavior and water details before deciding whether to attempt the pairing.

What tank size do I need for Sterbai Cory and Watchman Goby together?

A minimum of 55 gallons is recommended for keeping Sterbai Cory and Watchman Goby together. A larger tank improves water stability and reduces territorial conflict.

What temperature suits both Sterbai Cory and Watchman Goby?

75โ€“82ยฐF โ€” inside Sterbai Cory's 75โ€“82ยฐF and Watchman Goby's 72โ€“82ยฐF.

Is a Sterbai Cory aggressive toward a Watchman Goby?

Sterbai Cory is peaceful and Watchman Goby is peaceful. No major aggression issues are expected between these species.

Related Compatibility Guides

Tank Size for Sterbai Cory and Watchman Goby

Use the scenario that matches the actual group sizes and temperament you plan to keep.

ScenarioTankWhen it applies
Minimum viable55 galOnly for the recommended minimum groups, mature filtration, and close monitoring.
Recommended community75 galAdds territory, swimming room, and a safer buffer for behavior.
Low-conflict setup125 galBest when keeping larger schools or reducing territorial pressure.