The fish list

Gold nugget

L081

Baryancistrus xanthellus

Rio Xingu, and the Rio Iriri for L177 · rapids

Temperature

27–30°C

pH

5.5–7.5

Adult size

8 in · 20 cm

Flow

Strong

Swims

Bottom

Temperament

Territorial

Diet

Omnivore

Breeding

Hard

Typical price

$60–250

In Canada

Occasional

Rarity

Rare or hard to breed

Black with yellow spots and gold fin edges. Grows larger than Hypancistrus and holds a territory.

Photo: Anne Blindheim, CC BY-SA 3.0

Hi-fin green phantom

L200hf

Baryancistrus demantoides

Upper Orinoco and Ventuari, Venezuela · rapids

Temperature

27–30°C

pH

5.5–7.5

Adult size

6 in · 16 cm

Flow

Strong

Swims

Bottom

Temperament

Territorial

Diet

Omnivore

Breeding

Hard

Typical price

$100–250

In Canada

Rare

Rarity

Rare or hard to breed

The hi-fin version, with a tall dorsal. Territorial, and rarely bred.

Photo: Anne Blindheim, CC BY-SA 3.0

Big white spot

L142

Xingu and Tapajós basins, Brazil · rapids

Temperature

27–30°C

pH

5.5–7.5

Adult size

10 in · 25 cm

Flow

Strong

Swims

Bottom

Temperament

Territorial

Diet

Omnivore

Breeding

Hard

Typical price

$80–200

In Canada

Rare

Rarity

Rare or hard to breed

Big white spots on black with white fin edges. Striking, but big and territorial.