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Pictus Catfish© 5snake5 / CC0

Pictus Catfish

The Pictus Catfish is a small, silvery catfish native to the Amazon and Orinoco river basins, instantly recognizable by its scattered black spots and dramatically long whiskers that can exceed its own body length. Calm and peaceful by nature, it rarely shows aggression and gets along well with other fish sharing its tank. That said, it's also a very active swimmer, so it appreciates a tank with plenty of open space to cruise around in. Because it naturally forms groups with others of its kind, keeping six or more together lets you see its lively, natural schooling behavior at its best. As a species that calls for some foundational fishkeeping knowledge, it's generally considered a good match for intermediate keepers.

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Pictus Catfish key facts

Care level
Intermediate
Lifespan
7-10 years
Size
About 11-12cm
Temperature
22〜25℃
Diet
Frozen and live foods (bloodworm, Tubifex, earthworms), sinking dried foods
Tank
Aim for 120 x 45cm (about 243 litres) with open swimming space; FishBase also notes a 120cm minimum. Add wood and rock for daytime cover.
Water Temperature & Quality
22-25C, pH 5.8-6.8, 1-15 degrees hardness. It is active and eats well, so allow headroom in filtration.
Tank Mates
Peaceful in temperament but predatory on small fish. Suits rainbowfish, medium to large characins and cyprinids, and tough catfish. Six or more keeps it active.
Diet & Feeding
Takes bloodworm, Tubifex and earthworms readily and accepts sinking dried foods. Adults need feeding only every few days; avoid overfeeding.
Breeding & Spawning
Breeding is not thought to have been achieved in the hobby.
Health & Notes
The sharp pectoral and dorsal spines tangle in nets. Move the fish in a container and take care not to be spined when handling it.
TraitsCatfishSmall fishFreshwater fishSouth AmericaKeep in groups

About Pictus Catfish

Pictus Catfish is a silvery South American catfish with black spots and whiskers longer than its own body. An active schooling species that favors spacious tanks, best suited to intermediate keepers.

7 things to know before welcoming a Pictus Catfish

  1. 1A Tank with Room to Swim

    Pictus Catfish are constantly active swimmers that roam the tank. Choose a tank with plenty of floor space and arrange decor so it doesn't block open swimming areas.

  2. 2Keep in Groups of Six or More

    This species naturally forms groups with others of its kind, so it settles in better when kept in a group of six or more rather than alone. A small group can lead to more hiding behavior.

  3. 3Whiskers Longer Than Its Body

    One of the Pictus Catfish's signature features is its whiskers, which can grow longer than its own body. These barbels are delicate, so avoid sharp decorations or hardscape that could damage them.

  4. 4Peaceful and Community-Friendly

    Pictus Catfish are relatively calm and rarely aggressive toward tankmates, making them a good fit for community tanks. That said, it's best to avoid pairing them with fish small enough to fit in their mouths.

  5. 5More Active at Night

    They prefer dim lighting and often rest in hiding spots during the day, becoming more active when swimming and feeding at night. Providing shaded hiding places in the tank helps them feel secure.

  6. 6Best Suited to Intermediate Keepers

    Keeping water quality and tank conditions stable requires some foundational knowledge, which is why this species is considered suited to intermediate keepers. Prior experience with tropical fish is helpful before bringing one home.

  7. 7Plan Ahead for Adult Size

    Adults reach roughly 11 to 12 cm in length. Even though they're small when young, it's important to prepare a tank and filtration suited to their eventual adult size.

Frequently asked questions about Pictus Catfish

Q.Can a Pictus Catfish be kept alone?
A.Keeping just one isn't impossible, but this species naturally swims in groups. To see its calmer, more natural behavior, it's recommended to keep six or more together.
Q.Can it live in a tank with other fish?
A.Its peaceful temperament makes it easy to combine with many tropical fish. However, it may eat fish small enough to fit in its mouth, so choose tankmates of a similar size.
Q.Is it a problem if its whiskers get damaged?
A.The whiskers are delicate and can be damaged by contact with hardscape or decorations. If you notice ongoing changes, it's worth reviewing your tank conditions, including water quality.
Q.How large a tank does it need?
A.Adults reach roughly 11 to 12 cm and are very active swimmers. A reasonably sized tank that allows both open swimming space and room for a group is recommended.
Q.Is this species suitable for beginners?
A.The Pictus Catfish is considered best suited to intermediate keepers, requiring some knowledge of water quality management. It's a good idea to gain some tropical fish experience before taking one on.

Useful tools for Pictus Catfish care

💧Aquarium Volume CalculatorCalculate water volume, weight, and heater wattage from tank dimensions🧪Water Quality CheckerFind compatible fish, shrimp, plants & corals based on pH, temperature & hardness🍽️Feeding GuideCheck feeding frequency, portion sizes & supplements by species and growth stage🤝Compatibility CheckerCheck compatibility between two species on a 5-level scale📊Fish Compatibility MatrixCheck fish compatibility at a glance with our matrix chart🔄Nitrogen Cycle GuideAuto-calculate bacteria colonization timeline for new tank cycling🗓️Seasonal Care CalendarMonthly care events and seasonal management tips at a glance🚿Water Change CalculatorAuto-calculate optimal water change frequency and volume by tank size and fish count🐠Stocking CalculatorCalculate max fish capacity for your tank size with overstocking alertsElectricity Cost SimulatorCalculate monthly and annual electricity costs for care equipment with presets🧬Breeding PlannerSelect parent varieties to view breeding schedules and offspring patterns🏞️Tank Layout PlannerGet substrate, plant & hardscape suggestions based on tank size and style🧮Care Cost SimulatorEstimate initial, monthly & annual costs by category, care level and quantity⚖️Species Comparison ToolCompare two species side by side: care difficulty, size, lifespan & temperature🎯Pet Match DiagnosticAnswer 7 questions to find your top 3 perfect pets📋Lifetime Cost SimulatorEstimate lifespan and lifetime costs by species for dogs, cats, reptiles and more🚚Transport Safety CheckerCheck transport safety score and precautions by category, season, method and distance💊Medication Dosage CalculatorCalculate proper medication dosage by body weight and medicine type for fish, reptiles, and small animals⏱️Quarantine & Acclimation TimerManage quarantine periods and acclimation steps with countdown timers. Includes recommended durations by species

Learn more about Pictus Catfish in the encyclopedia

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