Can Blue Tang (Regal Tang) Live With Rope Fish?
❌Not Compatible
Incompatible pH. Blue Tang (Regal Tang) needs 8.1–8.4, Rope Fish needs 6.5–7.5.
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Parameter Comparison
| Parameter | Blue Tang (Regal Tang) | Rope Fish | Overlap |
|---|---|---|---|
| Temperature | 75–82°F | 72–82°F | 75–82°F ✓ |
| pH Range | 8.1–8.4 | 6.5–7.5 | No overlap ✗ |
| Temperament | semi-aggressive | peaceful | Monitor ⚠ |
| Max Size | 12" | 15" | Similar ✓ |
| Min Tank Size | 75 gal | 55 gal | 75 gal minimum together |
| Diet | Omnivore | Carnivore | — |
| Care Level | intermediate | intermediate | — |
Species Profiles
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 →Rope Fish
Erpetoichthys calabaricus
intermediatepeaceful55+ gal
The Rope Fish (Erpetoichthys calabaricus) is a intermediate-level freshwater fish growing to 15 inches. Peaceful temperament, minimum 55 gallon tank.
Full care guide →Other Compatible Tank Mates
For Blue Tang (Regal Tang):
For Rope Fish:
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