GoldfishCarassius auratus
Common GuppyPoecilia reticulata
Verdict:with caution
- Behaviour: with caution
- Water: ranges overlap
Why
The shared temperature of 18–22 °C is the lower part of the guppy's range. A goldfish grows up to 30 cm and is conditionally peaceful: it is dangerous for noticeably smaller fish, and a guppy is 3–6 cm.
Water and size
| Parameter | Goldfish | Common Guppy | Shared range |
|---|---|---|---|
| Temperature | 18 – 22 °C (64 – 72 °F) | 17 – 28 °C (63 – 82 °F) | 18 – 22 °C (64 – 72 °F) ranges overlap |
| Water pH | 6 – 8 | 7 – 8.5 | 7 – 8 ranges overlap |
| Water dH | 5 – 19 | 10 – 30 | 10 – 19 ranges overlap |
| Size in aquarium | 10 – 30 cm (3.9 – 12 in) | 3 – 6 cm (1.2 – 2.4 in) | |
| Required aquarium volume | from 300 L (79 gal) | from 40 L (11 gal) | |
| Keeping | Schooling (usually from 5–6 individuals and more) | Mixed (solitary / pair / group) | |
| Temperament | Semi-peaceful (dangerous to smaller ones) | Peaceful (regular) | |
| Swimming level | middle level | near the surface |
This is a general estimate: fish of the same species differ in character. Tank volume is given for each species separately — two species together need at least the larger of the two, and usually more.
Other pairs with these fish
- Siamese Fighting Fish + Goldfish not recommended
- Siamese Fighting Fish + Common Guppy not recommended
- Goldfish + Angelfish not recommended
- Goldfish + Neon Tetra not recommended
- Goldfish + Black Molly with caution
- Goldfish + Common Platy with caution
- Goldfish + Bronze Corydoras with caution
- Goldfish + Sumatran Barb not recommended
- Goldfish + Oscar Cichlid not recommended
- Angelfish + Common Guppy with caution
- Common Guppy + Neon Tetra with caution
- Common Guppy + Black Molly compatible
- Common Guppy + Common Platy compatible
- Common Guppy + Bronze Corydoras compatible
- Common Guppy + Sumatran Barb not recommended
- Common Guppy + Oscar Cichlid not recommended