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Molly FishVSCory Catfish

Can they live together? Complete Compatibility Analysis

Compatibility Score
85
⚠️ Caution

Mollies and Cory Catfish are generally compatible as peaceful community fish with overlapping water parameter needs. The primary caution is due to Mollies' preference for slightly harder, more alkaline water and their potential to be mildly boisterous, which can stress shy Corydoras. Both species require clean, well-maintained water.

Potential Issues
  • •Mollies can be prolific breeders; an all-female group is recommended to avoid overpopulation.
  • •Cory Catfish are sensitive to poor water quality and sharp substrate; use fine sand to protect their delicate barbels.
  • •Some larger Molly varieties may outcompete Corydoras for food; ensure sinking pellets reach the bottom.
Tank Requirements
Temperature
72-78°F (22-26°C)
pH Level
7.0-8.0
Minimum Tank Size
20 gallons

About Molly Fish and Cory Catfish

When considering adding Cory Catfish to a tank with Molly Fish, it's crucial to understand their specific needs. Mollies and Cory Catfish are generally compatible as peaceful community fish with overlapping water parameter needs. The primary caution is due to Mollies' preference for slightly harder, more alkaline water and their potential to be mildly boisterous, which can stress shy Corydoras. Both species require clean, well-maintained water.

Key Differences

  • Molly Fish: Requires 10 gallons minimum. Usually prefers tropical water conditions.
  • Cory Catfish: Requires 10 gallons minimum. Usually prefers tropical water conditions.

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