Pictus catfish

Pimelodus pictus

A fast, silver, black-spotted catfish with long whiskers, often sold as a bottom cleaner but actually a predator that eats neons and guppies.

Key facts

Body length
4.7 in without fins
Minimum tank
76 gallons
Group
Alone is fine
Temperament
Predatory
Care level
3 / 5
Lifespan
Not well documented
Diet
Sinking carnivore pellets, frozen bloodworm and mysis
Origin
Amazon and Orinoco basins, South America
Among all species
  • Hardier than10%
  • Bigger than64%
  • Calmer than5%

Water: their range vs yours

Temperature72–77°F
pH5.8–6.8
General hardness1–15 dGH

Pictus catfish tank mates

How we check

The numbers the tank model uses for pictus catfish: water as ideal and tolerated ranges, bioload from adult mass, space, flow and how they act on other species.

Standard length
12 cm (SL)
Adult mass
25.92 g
Bioload at 25 °C
11.91 BU
Min. water
243 L net
Min. footprint
120 × 45 cm per group
Min. height
45 cm
Group
1+ (best 6)
Swims in
bottom, middle
Flow
moderate
Body / fins
fusiform, normal fins
Diet type
carnivore
Fin nipper
none
Sensitive to
copper

Sources: Seriously Fish: Pimelodus pictus

Care notes

Pictus catfish come from shallow flowing waters with sandy or muddy bottoms in the Amazon and Orinoco. They are restless swimmers, most active at dusk, and feel more confident in a group of six.

A group needs a tank at least 4 feet long and 18 inches wide, around 55 gallons or more, with good flow and open swimming space. Their fin spines are venomous with a sting like a wasp's, so move them in a container rather than a net, and never keep them with small fish or shrimp.

Questions

What size tank does a pictus catfish need?

At least 76 gallons (243 litres of water after decor). Adults reach about 4.7 inches without fins.

How many pictus catfish should be kept together?

One is fine. They do not need company of their own kind.

What water do pictus catfish need?

72–77 °F, pH 5.8–6.8 and 1–15 dGH. Pictus catfish come from Amazon and Orinoco basins, South America.

How long do pictus catfish live?

Not well documented with good care.

What fish can live with pictus catfish?

Good tank mates include Common pleco, Convict cichlid, Fairy cichlid, Firemouth cichlid and Jewel cichlid. Each is checked both ways for size, fin nipping, temperament, territory and shared water.