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Species profile

Sharphead Eartheater

Satanoperca acuticeps

Common names: Sharphead Eartheater

Recognized speciesCichlids
Sharphead Eartheater (Satanoperca acuticeps)

Adult size

Up to 22 cm

Typical adult length 15–22 cm.

Up to 22 cm

Countries of origin

  • See all stock from Brazil

Good fit for your tank?

Good fit for

  • Mature planted aquarium setups
  • Advanced shrimp keepers

Think carefully if

  • The aquarium contains shrimp-eating fish
  • The tank is newly cycled
  • Water conditions change frequently

A pointed-headed Amazonian sand-sifter that needs a peaceful group, fine substrate, and pristine water.

Appearance and Identification

A slender silver-gold Satanoperca with a pointed snout, blue-green iridescence, dark flank markings, and reddish fins.

The pointed head and pattern separate it from deeper-headed Satanoperca, but locality and adult markings remain important.

Sexes are similar. Adult males may be somewhat larger and longer-finned.

Tank Requirements

Suggested filter
About 1,800–2,250 litres an hour
Suggested heater
About 450–675 W for this tank
Minimum tank volume
450 litres
Minimum tank length
180 cm
Minimum group size
5
Recommended group size
6
Activity level
High
Flow preference
Moderate
Planting preference
Moderately planted
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Low

Keep a group over a broad bed of fine sand with powerful filtration, high oxygen, wood, and open swimming room.

Behaviour and Tankmates

Peaceful, social, and constantly sifts sand for edible particles.

Maintain at least five or six to spread social pressure.

Pairs defend a temporary breeding site.

Use calm medium to large South American fish. Small fish and shrimp may be eaten.

Check tankmates for this species

Water Parameters

Temperature
25–30 °C
pH
4.5–7
GH
0–8
KH
0–4
TDS
15–150
Stability importance
Critical

Warm soft acidic water is preferred. Excellent cleanliness and low nitrate are essential.

Parameter caveat
Never use sharp gravel. Small groups and dirty substrate lead to stress and disease.

Feeding

Diet types
Detritivore, Insectivore, Omnivore
Feeding frequency
Daily
Preferred foods
  • Quality sinking cichlid pelletUse a staple pellet appropriate to the fish size and mouth shape.
  • Chopped shrimp, mussel, or earthwormOffer clean unseasoned portions as rotating protein foods.
  • Blanched leafy greens or peasUseful for omnivorous and plant-eating species; remove leftovers promptly.
  • Frozen krill or mysisFeed in moderation to add variety and support colour.

An omnivorous benthic sifter taking invertebrates, detritus, and plant material.

Feed small sinking portions across the sand several times daily.

Breeding

Breeding type
Egg Layer, Mouthbrooder, Substrate Spawner
Breeding difficulty
Difficult
Breeding temperature
28 °C
Breeding pH
6
Brood or egg count
Several hundred eggs.
Incubation
3 days
Parental care
Biparental care
Baby foods
  • Newly hatched brine shrimpSuitable after yolk absorption for most cichlid fry.
  • Crushed high-quality cichlid pelletIntroduce gradually as fry grow.
  • Finely chopped frozen cyclopsUseful supplementary food for larger fry.

A biparental substrate-spawning mouthbrooder. Eggs are laid on a cleaned surface and larvae are later carried by the parents.

Habitat and Origin

Geographic origin
Amazon Basin, Brazil, South America
Natural habitat
Floodplain, Freshwater River, Lake, Sand/Mud Substrate
Aquarium contexts
Breeding Aquarium, Freshwater Aquarium, Large Freshwater Aquarium
Audience level
Advanced

Classification

Profile type
Recognized species
Genus
Satanoperca
Family
Cichlidae
Species group
Cichlids, Fish, South American Cichlids

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