Goldfish vs Guppy
Side-by-side care comparison to help you choose.
| Goldfish | Guppy | |
|---|---|---|
| Difficulty | Intermediate | Beginner |
| Adult size | 6-12 inches (depending on type) | 1.5-2.5 inches |
| Lifespan | 10-15 years | 2-3 years |
| Min tank size | 20-40 gallons | 10 gallons |
| Water temp | 65-75 F | 74-82°F |
| pH | 6.5-7.5 | 6.8-7.8 |
| Temperament | Peaceful | peaceful |
| Tank mates | Other goldfish; avoid fin nippers and small fish that fit in mouth. | Other peaceful community fish like tetras, rasboras, corydoras, mollies, and platies. |
| Diet | High-quality sinking pellets or gel food, supplemented with blanched vegetables (peas, zucchini) and occasional bloodworms. Feed 2-3 times daily in small amounts. | Omnivorous; feed high-quality flake food daily, supplemented with live or frozen foods like brine shrimp or daphnia 2-3 times per week. |