Can Molly and Sterbai Cory Live Together?
Can Molly and Sterbai Cory Live Together? Only with caution and a purpose-built setup. Their pH and temperature preferences only partly overlap, so a compromise setup needs stable, tested water.
| Factor | Molly | Sterbai Cory | Verdict |
|---|---|---|---|
| Temperature | 72โ82ยฐF | 75โ82ยฐF | โ 75โ82ยฐF |
| pH Range | 7.5โ8.5 | 6.0โ7.6 | โ ๏ธ 7.5โ7.6 (narrow) |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 4 in | 2.6 in | โ Similar |
| Min. Group | 3+ | 6+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
How to Reduce the Risk
Their pH and temperature preferences only partly overlap, so a compromise setup needs stable, tested water.
A Safer Plan for Molly and Sterbai Cory
Choose a stable middle range and keep both species in their appropriate social groups.
Species Profiles
Molly โ Poecilia sphenops
Hardy livebearers that prefer alkaline, hard water โ sometimes slightly brackish. Prolific breeders; peaceful community fish.
Sterbai Cory โ Corydoras sterbai
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.
Frequently Asked Questions
Can Molly live with Sterbai Cory?
Sometimes, but treat it as a cautious pairing that needs a purpose-built setup rather than a default recommendation.
What is the main risk with Molly and Sterbai Cory?
Their pH and temperature preferences only partly overlap, so a compromise setup needs stable, tested water.
What setup reduces conflict between Molly and Sterbai Cory?
Choose a stable middle range and keep both species in their appropriate social groups.
When should I avoid keeping Molly and Sterbai Cory together?
Avoid the pairing in a small tank, with incomplete social groups, or when either species shows persistent stress or aggression.
Related Compatibility Guides
Tank size scenarios
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 55 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 75 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 125 gal | Best when keeping larger schools or reducing territorial pressure. |