Shadow Catfish

Siluriformes sp.

Shadow Catfish (Siluriformes sp.) — Easy care, Peaceful, under Catfish & Cory. Minimum tank in the app: 13.2 US gal min; aim for 70–79°F and pH 6–7.8. The Shadow Catfish is an excellent choice for both novice and experienced aquarists seeking a peaceful bottom-dweller that thrives in well-planted tanks.

Shadow Catfish (Siluriformes sp.) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size13.2 US gal min
pH range6–7.8
Temperature70–79°F
Max size1.8 in (4.5 cm)
Captive lifespan5–10 years
SchoolingNo

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Mostly South America / Africa

  • South America
  • Africa

Regional colours match the stocking calculator’s origin map.

Shadow Catfish Tank Setup

Aim for a well-structured tank that incorporates plenty of hiding places, such as caves, driftwood, and dense plant growth, while ensuring open areas for swimming. A substrate of fine sand or smooth gravel is ideal, as it allows for natural foraging behavior. Moderate lighting will help create a comfortable atmosphere, and gentle water flow is recommended to mimic their natural habitats.

What Do Shadow Catfishs Eat?

As omnivorous bottom feeders, Shadow Catfish prefer sinking pellets, flakes, and supplementary live or frozen foods. Given their slower feeding speed, ensure they are not outcompeted by faster swimmers during feeding time, which may necessitate spot feeding or using feeding rings to ensure they receive adequate nutrition.

Shadow Catfish Tank Mates

This species pairs well with similarly sized, peaceful tank mates such as small tetras or rasboras, avoiding larger or more aggressive fish that may outcompete them for food or establish dominance. Since they are not social fish, keeping them singly or in small numbers can prevent stress, and they should not be housed with fin-nippers or overly active species that may disturb their bottom-dwelling tendencies.

Are Shadow Catfishs Good for Beginners?

In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. Aquarists often underestimate the importance of tank structure, leading to stressed fish that may hide excessively or become lethargic. Overcrowding is another common error, which can elevate stress levels and lead to health decline.

Building a community? Run the full list through the stocking calculator before you add anything else.

Log tests and reminders in App-aquatic—free, same data you see here.