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GuppyVSMolly Fish

Can they live together? Complete Compatibility Analysis

Compatibility Score
95
✅ Perfect Match

Guppies and Mollies are both peaceful, livebearing fish from the Poeciliidae family. They share nearly identical requirements for warm, hard, alkaline water and thrive in planted community tanks. Their temperaments are highly compatible, and they are often kept together successfully.

Potential Issues
  • •Both are prolific breeders; an all-female tank is recommended to prevent overpopulation.
  • •Mollies can grow larger and may occasionally be boisterous, but serious aggression towards guppies is very rare.
Tank Requirements
Temperature
72-82°F (22-28°C)
pH Level
7.0-8.5
Minimum Tank Size
20 gallons

About Guppy and Molly Fish

When considering adding Molly Fish to a tank with Guppy, it's crucial to understand their specific needs. Guppies and Mollies are both peaceful, livebearing fish from the Poeciliidae family. They share nearly identical requirements for warm, hard, alkaline water and thrive in planted community tanks. Their temperaments are highly compatible, and they are often kept together successfully.

Key Differences

  • Guppy: Requires 5 gallons minimum. Usually prefers tropical water conditions.
  • Molly Fish: Requires 10 gallons minimum. Usually prefers tropical water conditions.

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