Rainbowfish vs Swordtail
Side-by-side care comparison to help you choose.
| Rainbowfish | Swordtail | |
|---|---|---|
| Difficulty | Beginner | Beginner |
| Adult size | 3-4 inches | 4-5 inches |
| Lifespan | 5-8 years | 3-5 years |
| Min tank size | 30 gallons | 20 gallons |
| Water temp | 74-82F | 72-82°F |
| pH | 6.5-8.0 | 7.0-8.0 |
| Temperament | peaceful | peaceful |
| Tank mates | Peaceful community fish like tetras, rasboras, and corydoras. | Peaceful community fish like mollies, platies, tetras, corydoras. |
| Diet | Omnivorous; feed high-quality flake or pellet daily supplemented with frozen or live foods 2-3 times per week. | Omnivore; feed high-quality flake or pellet daily, supplement with frozen or live foods like brine shrimp and daphnia 2-3 times per week. |