Chocolate Raphael Catfish

Platydoras costatus

Photo of aquarium fish Chocolate Raphael Catfish
Natural range
  • South America area
  • Argentina
  • Bolivia
  • Brazil
  • Colombia
  • French Guiana
  • Guyana
  • Peru
  • Suriname
  • Venezuela
Catfish Conservation status: Least concern LC

Family:Doradidae (Thorny Catfishes)

Other scientific names: Doras costatus, Doras dentatus, Doras helicophilus, Mystus ascita, Platydoras dentatus, Platydoras helicophilus

The Chocolate Raphael Catfish, scientifically known as Platydoras costatus, belongs to the family Doradidae and has acquired several common names such as Striped Raphael Catfish, Platydoras striped, or Thorny Platydoras. This species is particularly popular among aquarists, its friendly nature highly valued, even though it is carnivorous.

Required aquarium volume
from 280 L
Size in aquarium
25 cm
Temperature
24 – 30 °C
Temperament
Semi-peaceful
Parameters
Temperature24 – 30 °C
Water pHSlightly acidic (5.8) – Neutral (7)
Water dHSoft (4) – Very hard (18)
Water salinityno salt (freshwater)
Size in aquarium25 cm
Lifespan15 years
TemperamentSemi-peaceful
Toward small fisha risk to small fish
Required aquarium volumefrom 280 L
Lightingmoderate (regular)
Substratecoarse sand
Water flowmoderate
Swimming levelnear the bottom
FeedingMeat with plant additives
KeepingMixed
Jumpinglow

Frequently asked questions

The essentials: size, tank volume, water parameters and care

How big does Chocolate Raphael Catfish get?

An adult reaches 25 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Chocolate Raphael Catfish need?

The recommended volume is 280 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Chocolate Raphael Catfish need?

Temperature 24–30 °C, pH 5.8–7, hardness 4–18 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Chocolate Raphael Catfish live?

Around 15 years when kept properly. Lifespan depends directly on tank volume, water quality and a varied diet.

Is Chocolate Raphael Catfish aggressive?

Temperament: semi-peaceful (dangerous to smaller ones). Not a predatory species, but small fish that fit in its mouth will eventually be eaten.

How many Chocolate Raphael Catfish should be kept together?

Recommended setup: mixed (solitary / pair / group). Ignoring this is a common cause of stress and disease.

What does Chocolate Raphael Catfish eat?

Diet type: meat with plant additives (omnivores). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of Chocolate Raphael Catfish?

The scientific name of the species is Platydoras costatus, family Doradidae (Thorny Catfishes). It also appears in the literature as: Doras costatus, Doras dentatus, Doras helicophilus.

Plants and this fish

Similar fishes

Matched by family, categories and overlapping keeping conditions

Platydoras
Platydoras
Doradidae (Thorny Catfishes)

Platydoras armatulus

Platydoras (Platydoras armatulus), a representative of the family Doradidae, exhibits enviable unpretentiousness and high endurance. It can become an excellent helper in the aquarium, picking up food scraps left by…

Striped Raphael Catfish
Striped Raphael Catfish
Doradidae (Thorny Catfishes)

Orinocodoras eigenmanni

Orinocodoras eigenmanni, also known as the Striped Raphael Catfish or Orinoco Raphael Catfish, belongs to the family Doradidae (thorny catfishes). This catfish originates from South America, specifically the Orinoco…

Chocolate Talking Catfish
Chocolate Talking Catfish
Doradidae (Thorny Catfishes)

Acanthodoras cataphractus

Acanthodoras cataphractus, commonly known as the Chocolate Talking Catfish or Chocolate Doradid, belongs to the family Doradidae (Thorny Catfishes). It is also called the Spiny Catfish. This fish is not frequently found…

Spotted Raphael Catfish
Spotted Raphael Catfish
Doradidae (Thorny Catfishes)

Agamyxis pectinifrons

Agamyxis pectinifrons is the scientific name for the Spotted Raphael Catfish, also known as the Spotted Doradid or White-spotted Agamyxis. This member of the Doradidae family earned its other common name, "Talking…

rev. 1c927ce© Aquario 2024-2026Create by VR9