Can Platy Live With Blue Tang (Regal Tang)?
❌Not Compatible
Cannot coexist — Platy is freshwater, Blue Tang (Regal Tang) is saltwater.
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Parameter Comparison
| Parameter | Platy | Blue Tang (Regal Tang) | Overlap |
|---|---|---|---|
| Temperature | 70–80°F | 75–82°F | 75–80°F ✓ |
| pH Range | 7–8.2 | 8.1–8.4 | 8.1–8.2 ✓ |
| Temperament | peaceful | semi-aggressive | Monitor ⚠ |
| Max Size | 2.5" | 12" | Size mismatch ✗ |
| Min Tank Size | 10 gal | 75 gal | 75 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | beginner | intermediate | — |
Species Profiles
Platy
Xiphophorus maculatus
beginnerpeaceful10+ gal
Platies are colorful, hardy livebearers that come in dozens of color varieties. They are extremely easy to care for, breed readily, and get along with virtually all peaceful community fish. Perfect for beginners.
Full care guide →Blue Tang (Regal Tang)
Paracanthurus hepatus
intermediatesemi-aggressive75+ gal
The blue tang — Dory from Finding Nemo — is one of the most recognizable marine fish with its vivid royal blue body, black palette marking, and yellow tail. While stunning, they grow large (up to 12 inches), are highly susceptible to ich, and need tanks of 75+ gallons. They are not beginner fish despite their popularity following the movies.
Full care guide →Other Compatible Tank Mates
For Platy:
For Blue Tang (Regal Tang):
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