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Pictus Catfish
Pimelodus pictus
Animalia›Chordata›Actinopterygii›Pimelodidae
📍 Amazon & Orinoco Basins, South America
Active, silver catfish with black spots and long barbels. Schools in the wild so keep in groups of 3+. A mid-water swimmer unlike most catfish. Will eat small fish that fit in its mouth.
Care Guide
Diet
Pictus catfish are carnivorous and require high-protein foods including sinking pellets, frozen bloodworms, brine shrimp, and small live foods. Feed small amounts once daily, removing uneaten food within a few hours to maintain water quality. They will scavenge the substrate but should not rely solely on leftover food from other tank inhabitants.
Behavior
Pictus catfish are active, social bottom-dwellers that spend much of their time foraging along the substrate and mid-water column, unlike most benthic catfish species. They are peaceful toward similarly-sized fish but will consume very small fish and fry that fit in their mouths. These fish are schooling species and become stressed when kept alone, displaying more confident and natural behavior in groups of 3 or more.
Breeding
Breeding pictus catfish in captivity is extremely rare and difficult, with very few documented successful spawns in home aquariums. They require specific environmental triggers including cooler temperatures, increased water flow, and precise water chemistry that are challenging to replicate. Most pictus catfish in the hobby are wild-caught, making captive breeding impractical for most hobbyists.
Tank Mates
Similar water parameters and peaceful temperament; avoid very small tetras that could be eaten
Small but hardy schooling fish that occupy mid-water zones; keep in groups
Peaceful bottom-dweller with compatible water requirements; minimal competition
Peaceful catfish sharing similar habitat preferences and temperature range
Peaceful schooling fish that occupy different water zones; adequate size to avoid predation
May be eaten by pictus catfish; only suitable if tank is heavily planted with hiding spots
Common Diseases
Ich (Ichthyophthirius multifiliis)
White spots on body and fins, rapid breathing, rubbing against objects, lethargy
Raise temperature gradually to 28-29°C, perform daily 25% water changes, use ich medication following label directions; maintain excellent water quality
Fin Rot
Frayed or deteriorating fins, discoloration at fin edges, fin loss progressing toward body
Improve water quality with frequent partial water changes, remove any sharp tank décor, use antibacterial medication if severe; ensure adequate filtration
Barbel Damage/Infection
Shortened, frayed, or missing barbels; redness or swelling at barbel base
Improve substrate quality (avoid sharp gravel), reduce stress, perform water changes, use antibacterial treatment if infected; provide smooth hiding spots
Bacterial Infection
Open sores, ulcers, cloudy eyes, loss of appetite, color fading
Perform 50% water change immediately, treat with broad-spectrum antibiotic medication, isolate if possible, maintain pristine water conditions
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Quick Facts
- pH
- 6.0–7.0
- diet
- carnivore
- maxSize
- 5 inches
- minTankSize
- 55 gallons
- temperature
- 73–81°F (23–27°C)
Temperature
73–81°F
23–27°C