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Freshwater fishFlagtail Porthole Catfish
Flagtail Porthole Catfish
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The flagtail porthole catfish grows to 5 inches and sports a black and white banded caudal (tail) fin. Similar body to the more common porthole catfish, flagtail cats come from Brazil, grow larger, and display a more distinct pattern. Flagtail porthole cats prefer lower pH and will not tolerate pH over 8.0. These are considered hardy Amazon catfish and will be suitable to most aquariums - except they may eat small creatures that fit in their small mouths!
Quick Facts
| Scientific Name | Dianema urostriatum |
| Origin | Amazon basin, Brazil |
| Care Level | Easy |
| Temperament | Peaceful (eats very small fish) |
| Adult Size | Up to 5" |
| Lifespan | 6–10 years |
| Diet | Omnivore |
| Water Temperature | 72–80°F |
| pH | 6.0–7.5 |
| Group Size | Single or group |
| Shipping Size | Approx. 3–4" |
Care Guide
Tank setup: Give them a soft sand bottom, driftwood and plants. They are calm fish that like dim lighting.
Feeding: Feed sinking pellets once a day, ideally in the evening when they are most active. They also enjoy frozen foods like bloodworms.
Tankmates: They are peaceful but will eat very small fish. Keep them with community fish too large to fit in their mouth.
Good to know: Flagtail porthole catfish are named for the bold black-and-white stripes on their tail.
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