Can Bristlenose Pleco Live With Silver Arowana?
❌Not Compatible
Silver Arowana is aggressive and will likely attack or stress tank mates.
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Parameter Comparison
| Parameter | Bristlenose Pleco | Silver Arowana | Overlap |
|---|---|---|---|
| Temperature | 73–81°F | 75–82°F | 75–81°F ✓ |
| pH Range | 6.5–7.5 | 6–7.5 | 6.5–7.5 ✓ |
| Temperament | peaceful | aggressive | Aggression risk ✗ |
| Max Size | 5" | 36" | Size mismatch ✗ |
| Min Tank Size | 20 gal | 125 gal | 125 gal minimum together |
| Diet | Omnivore | Carnivore | — |
| Care Level | beginner | advanced | — |
Species Profiles
Bristlenose Pleco
Ancistrus spp.
beginnerpeaceful20+ gal
The Bristlenose Pleco is the most popular pleco species for home aquariums, and for good reason — they stay small (4–5 inches vs 12–24 inches for common plecos), are excellent algae eaters, and are hardy and easy to care for. Males develop distinctive bristle-like growths on their nose, which is how they get their name.
Full care guide →Silver Arowana
Osteoglossum bicirrhosum
advancedaggressive125+ gal
The Silver Arowana (Osteoglossum bicirrhosum) is a advanced-level freshwater fish growing to 36 inches. Aggressive temperament, minimum 125 gallon tank.
Full care guide →Other Compatible Tank Mates
For Bristlenose Pleco:
For Silver Arowana:
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