The Tocantinsia piresi is a really unique South American catfish known for its dark body covered in bright cream or gold spots and long flowing fins. It has a very “wild” look to it and becomes a real centerpiece fish once it gets some size. Even though it looks aggressive, it’s actually a pretty calm species when kept with the right tank mates.
This fish does best in larger aquariums with driftwood, strong filtration, and good water movement. They spend a lot of time resting on wood or cruising around the bottom of the tank.
Max Size
Usually around 12–16 inches in captivity, sometimes larger in big systems.
Tank Size
Minimum: 125 gallons
Recommended: 180+ gallons for adults
A larger footprint is important since they get pretty bulky and active.
Tank Mates
Peaceful for their size and usually do well with other larger community fish.
Good tank mates include:
- Silver Dollars
- Severums
- Geophagus
- Larger tetras
- Other peaceful catfish or plecos
Avoid:
- Very aggressive fish
- Small fish that may get stressed around them
- Overcrowded bottom dwellers
Diet
Mostly omnivorous with a strong preference for plant-based foods and natural grazing.
Good foods include:
- Algae wafers
- Quality sinking pellets
- Zucchini or cucumber
- Spinach
- Cut shrimp occasionally
- Occasional protein foods in moderation
Driftwood is also important since they naturally graze on surfaces throughout the day.
👉 A varied diet helps keep them healthy and brings out their patterning.
Care & Behavior
These catfish are hardy once established, but they need clean, well-oxygenated water. They usually become more outgoing over time and can even recognize feeding routines.
They enjoy:
- Driftwood
- Moderate to strong flow
- Dimmer lighting
- Open bottom space
Because of their size, they produce a decent amount of waste, so strong filtration and regular maintenance are important.
Why We Like Them
- Really unique spotted pattern
- Long flowing fins
- Peaceful personality
- Great centerpiece fish for larger aquariums
- Looks incredible in natural-style setups
⚠️ Important Notes
- Needs a large tank long term
- Strong filtration is a must
- Can accidentally move decorations or plants around
- Best suited for hobbyists prepared for a larger species
