Red Striped Eartheater
Geophagus surinamensis
A large, relatively peaceful South American cichlid famous for its 'earth-eating' behavior. They constantly sift fine sand through their gills to forage for benthic invertebrates. A soft sand substrate is absolutely mandatory for their long-term health to prevent gill damage and stress. While gregarious and best kept in groups, they establish a strict pecking order.
Red Striped Eartheater At a Glance
Red Striped Eartheater Tank Requirements
Will Red Striped Eartheater fit in your tank?
Care guides tell you what Red Striped Eartheater needs, the next question is whether your tank can safely provide it. Test Red Striped Eartheater against your tank size, maintenance needs, and the fish you already keep before you buy.
Red Striped Eartheater Water Parameters
Red Striped Eartheater Temperament & Compatibility
Red Striped Eartheater Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Adult (Standard)
The standard adult form. Can be kept as a single centerpiece fish, or in a shoal of 5+ to disperse natural cichlid aggression. Keeping 2-4 usually results in the dominant fish relentlessly bullying the subordinates.
Differs in 1 trait from base species
Also known as: Adult Geophagus
Juvenile (Grow-out)
Juvenile Eartheaters are commonly sold at 5-8cm. They can temporarily be housed in smaller aquariums but are voracious eaters and will require rapid upgrades as they grow. They still strictly require a sand substrate.
Differs in 5 traits from base species
Also known as: Baby Geophagus, Juvenile Eartheater
Red Striped Eartheater Care Guide Summary
The Red Striped Eartheater, scientifically known as Geophagus surinamensis, belongs to the Cichlids - South American family group. Adults reach a maximum size of approximately 25 cm and have a compressed body shape with a moderate growth rate. Classified as mostly peaceful, this species primarily occupies the bottom and mid-level zones of the aquarium and produces a high level of biological waste.
To thrive, the Red Striped Eartheater requires a freshwater only aquarium with a minimum volume of 250 litres and a tank length of at least 120 cm. Water temperature should be maintained between 24°C and 28°C, with a pH range of 6–7.5 and a general hardness of 2–10 dGH. A moderate water flow is preferred.
The Red Striped Eartheater is a rewarding species to keep, provided its core environmental needs are met. This species is available in 2 varieties: Adult (Standard) and Juvenile (Grow-out). Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Red Striped Eartheater Habitat Setup
When setting up an aquarium for the Red Striped Eartheater, a moderate water flow best suits their natural preferences. Because this species occupies the bottom and mid-level zones, the aquarium layout should prioritise open swimming space in the centre of the tank for free movement and sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include a sand substrate to accommodate their sifting behaviour and leaf litter or blackwater tannins to replicate their natural soft-water habitat. Keepers should note that expect substrate disturbance, so lightweight décor should be secured.
Red Striped Eartheater Compatibility Notes
Classified as mostly peaceful, the Red Striped Eartheater is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, conspecific aggression can be intense, especially in smaller tanks and their energetic swimming style may stress more sedentary or timid species. Selecting tankmates that favour different water layers from the bottom and mid-level zones can help reduce competition and territorial overlap.
Who Red Striped Eartheater Is Actually For
Red Striped Eartheater is best for a fishkeeper who wants a species that can settle into a calmer community setup and can provide a keeper who can commit to a proper group of at least 5. It makes the most sense for a hobbyist who will actually build around its needs, especially sand.
The most common mistake is treating Red Striped Eartheater like any other community fish and skipping the soft sand it needs to forage safely. Another frequent problem is underestimating its social needs. A token pair or trio often behaves very differently from a real group.
Red Striped Eartheater Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Red Striped Eartheater.
75 Gallon Standard
90 Gallon Standard
125 Gallon Standard
150 Gallon High
180 Gallon Standard
350 Liter (120cm Deep)
Show 1 more tank size
Frequently Asked Questions About Red Striped Eartheater
How big does Red Striped Eartheater get?
Red Striped Eartheater (Geophagus surinamensis) typically reaches a maximum adult size of approximately 25 cm. They have a compressed body shape and a moderate growth rate.
What tank size does Red Striped Eartheater need?
A minimum aquarium volume of 250 litres and a tank length of at least 120 cm are recommended for Red Striped Eartheater. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Red Striped Eartheater need?
Red Striped Eartheater thrives in freshwater only conditions with a temperature range of 24–28°C, a pH between 6 and 7.5, and a general hardness of 2–10 dGH. A moderate water flow is preferred.
Is Red Striped Eartheater peaceful or aggressive?
Red Striped Eartheater is classified as mostly peaceful with an aggression score of 4 out of 10. They are generally well-suited to peaceful community tanks.
Can Red Striped Eartheater live alone?
Yes, Red Striped Eartheater can be kept singly or in a group. They are flexible and adapt well to both setups.
Does Red Striped Eartheater have any special tank requirements?
Yes. Red Striped Eartheater benefits from sand (sifters) and leaf litter/blackwater in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Useful setup supplies
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Guidarium Editorial Desk
Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.
- Last reviewed
- May 11, 2026
- Last updated
- May 11, 2026
- Issues or corrections?
- Contact the editorial team
Top Tank Mates for Red Striped Eartheater
These fish are strong compatibility matches for Red Striped Eartheater based on water preferences, temperament, adult size, and tank behavior.
Celebes Halfbeak
Nomorhamphus liemi
Ideal Tank MatesJapanese Ricefish (Medaka)
Oryzias latipes
Ideal Tank MatesKabia rainbowfish
Glossolepis kabia
Ideal Tank MatesTiger Danio
Devario maetaengensis
Ideal Tank MatesWestern Rainbowfish
Melanotaenia australis
Ideal Tank MatesWaigeo Rainbowfish
Melanotaenia catherinae
Ideal Tank MatesPlants That Suit Red Striped Eartheater
These plants pair well with Red Striped Eartheater based on shared water preferences, layout fit, and how likely they are to hold up in the same aquarium.
Afzel's Anubias
Anubias afzelii
Anubias Barteri
Anubias barteri
Belinda's Buce
Bucephalandra belindae
Buce Motleyana
Bucephalandra motleyana
Christmas Moss
Vesicularia montagnei
Congo Anubias
Anubias heterophylla
Fish Similar to Red Striped Eartheater
Red Hump Eartheater
Geophagus steindachneri
A fascinating South American cichlid famous for its constant sand-sifting behavior to find food. They are maternal mouthbrooders. Unlike many large cichlids, they are relatively peaceful toward other species, making them excellent candidates for large community tanks, though conspecific males will clash.
Pearl Eartheater
Geophagus brasiliensis
A robust, highly adaptable South American cichlid known for its iridescent pearl-like spangling. While classified as an 'eartheater' (sifting sand for food), they are less obligate sifters than other Geophagus species but still require a soft sand substrate. They are surprisingly tolerant of cooler water and even brackish conditions. They are aggressive for eartheaters, especially when breeding.
Altifrons Eartheater
Geophagus altifrons
The Altifrons Eartheater is a large, graceful South American cichlid famous for its benthophagous feeding behavior. It constantly takes mouthfuls of sand, sifting it through its gills to extract small food particles. This natural behavior requires a fine sand substrate to prevent gill damage. While generally peaceful and best kept in groups, their constant digging will uproot most planted vegetation.
Jurupari Eartheater
Satanoperca jurupari
The Jurupari Eartheater is a remarkably peaceful South American cichlid famous for its continuous substrate-sifting behavior. They require a fine sand substrate to thrive and prevent damage to their delicate gills. Unlike highly aggressive cichlids, they are gentle giants that prefer the company of their own kind in a large, uncrowded community of similar-sized peaceful fish.
Stripefin Eartheater
Gymnogeophagus rhabdotus
A beautifully spangled subtropical eartheater native to Uruguay and southern Brazil. Unlike tropical South American cichlids, they thrive in cooler water and optimally require a winter 'cool down' period (below 20°C) to simulate their natural seasonal cycle, promoting long-term health and breeding. As eartheaters, they constantly sift the substrate for food, meaning soft sand is an absolute requirement to prevent gill damage.
Uruguayan Eartheater
Gymnogeophagus australis
A beautiful, subtropical eartheating cichlid from the Uruguay River basin. They constantly sift sand for food and are generally peaceful but territorial during breeding. Crucially, they require a cool 'winter' period (15-20°C) to thrive long-term; keeping them at year-round tropical temperatures will drastically shorten their lifespan and cause them to lose color.