Can Guppy Live With Royal Gramma?
Incompatible pH. Guppy needs 6.8–7.8, Royal Gramma needs 8.1–8.4.
Parameter Comparison
| Parameter | Guppy | Royal Gramma | Overlap |
|---|---|---|---|
| Temperature | 72–82°F | 75–80°F | 75–80°F ✓ |
| pH Range | 6.8–7.8 | 8.1–8.4 | No overlap ✗ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 2.5" | 3" | Similar ✓ |
| Min Tank Size | 10 gal | 20 gal | 20 gal minimum together |
| Diet | Omnivore | Carnivore | — |
| Care Level | beginner | beginner | — |
Species Profiles
Guppy
Poecilia reticulata
Guppies are colorful, hardy livebearers that are perfect for beginners. Males sport spectacular tail patterns in every color imaginable, while females are larger and less colorful. They breed prolifically — a single female can produce 20–50 fry every month — so plan accordingly or keep only males.
Full care guide →Royal Gramma
Gramma loreto
The royal gramma is one of the most stunning and beginner-friendly saltwater fish. Its front half is vivid purple transitioning to bright yellow on the back — a color combination unmatched in the marine world. They are hardy, disease-resistant, reef-safe, and stay small. Often considered one of the top 3 beginner saltwater fish alongside clownfish and firefish.
Full care guide →