🐠 Fish Compatibility Database

Fish Compatibility Guides

Find out if your fish can safely share an aquarium — with compatibility scores, water parameter analysis, and expert verdicts for 465 species pairs.

269

Compatible Pairs

84

Caution Pairs

112

Incompatible Pairs

31

Species Covered

Most-Searched Compatibility Questions

The most common "can X live with Y" questions answered with compatibility scores.

Betta Fish + Neon Tetra⚠️ Use Caution Betta Fish + Guppy❌ Not Compatible Betta Fish + Cherry Shrimp⚠️ Use Caution Betta Fish + Corydoras Catfish✅ Compatible Betta Fish + Angelfish⚠️ Use Caution Betta Fish + Tiger Barb❌ Not Compatible Goldfish + Neon Tetra❌ Not Compatible Oscar + Angelfish⚠️ Use Caution Neon Tetra + Cardinal Tetra✅ Compatible Discus + Cardinal Tetra❌ Not Compatible Guppy + Platy✅ Compatible Molly + Swordtail✅ Compatible

Use the Interactive Checker

Want to check a custom combination? Use our free tool.

🛠️ Open Compatibility Checker