Silver Prochilodus
Semaprochilodus taeniurus
A large, active riverine species famous for its striking striped tail and ability to consume massive amounts of algae. Commonly kept as a 'cleanup crew' in monster fish setups (with Arowanas or large Cichlids). They are peaceful towards other species but highly intolerant of their own kind unless kept in large shoals to disperse aggression.
Silver Prochilodus At a Glance
Silver Prochilodus Tank Requirements
Will Silver Prochilodus fit in your tank?
Care guides tell you what Silver Prochilodus needs, the next question is whether your tank can safely provide it. Test Silver Prochilodus against your tank size, maintenance needs, and the fish you already keep before you buy.
Silver Prochilodus Water Parameters
Silver Prochilodus Temperament & Compatibility
Silver Prochilodus Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Standard (Adult)
The fully grown adult form. Due to their size and high activity level, they require a massive footprint. If not kept solitary, they must be kept in groups of 6 or more to prevent fatal conspecific bullying.
Same care requirements as the base species
Also known as: Adult Flagtail, Full Grown Fei Feng
Juvenile (Grow-out)
Typical sale size in the aquarium trade. While they can temporarily be housed in smaller aquariums, they are fast swimmers and will rapidly outgrow standard tanks. Warning: May graze on the slime coats of slow-moving tank mates like Bichirs or Rays if underfed.
Differs in 4 traits from base species
Also known as: Baby Flagtail, Juvenile Fei Feng
Silver Prochilodus Care Guide Summary
The Silver Prochilodus, scientifically known as Semaprochilodus taeniurus, belongs to the Characins family group. Adults reach a maximum size of approximately 30 cm and have a compressed body shape with a moderate growth rate. Classified as mostly peaceful, this species primarily occupies the mid-level and bottom zones of the aquarium and produces a high level of biological waste.
To thrive, the Silver Prochilodus requires a freshwater only aquarium with a minimum volume of 450 litres and a tank length of at least 150 cm. Water temperature should be maintained between 23°C and 28°C, with a pH range of 5.5–7.5 and a general hardness of 1–15 dGH. A high water flow is preferred.
The Silver Prochilodus is a rewarding species to keep, provided its core environmental needs are met. This species is available in 2 varieties: Standard (Adult) 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.
Silver Prochilodus Habitat Setup
When setting up an aquarium for the Silver Prochilodus, a high water flow best suits their natural preferences. Because this species occupies the mid-level and bottom 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 an established tank with natural algae growth, as they depend on it as a primary food source. Keepers should note that a tight-fitting lid is essential, as this species is a known jumper and live planted layouts may be difficult to maintain, as this species tends to uproot or consume vegetation.
Silver Prochilodus Compatibility Notes
Classified as mostly peaceful, the Silver Prochilodus 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 mid-level and bottom zones can help reduce competition and territorial overlap.
Who Silver Prochilodus Is Actually For
Silver Prochilodus is best for a fishkeeper who wants a species that can settle into a calmer community setup and can provide someone who understands its individual space requirements. It makes the most sense for a hobbyist who will actually build around its needs, especially established algae.
The most common mistake is buying Silver Prochilodus for looks first and only later discovering how its adult size, behavior, or bioload changes the whole tank plan. Another frequent problem is forcing it into an over-busy community when it would do better with more room or more deliberate tankmate choices.
Silver Prochilodus Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Silver Prochilodus.
Frequently Asked Questions About Silver Prochilodus
How big does Silver Prochilodus get?
Silver Prochilodus (Semaprochilodus taeniurus) typically reaches a maximum adult size of approximately 30 cm. They have a compressed body shape and a moderate growth rate.
What tank size does Silver Prochilodus need?
A minimum aquarium volume of 450 litres and a tank length of at least 150 cm are recommended for Silver Prochilodus. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Silver Prochilodus need?
Silver Prochilodus thrives in freshwater only conditions with a temperature range of 23–28°C, a pH between 5.5 and 7.5, and a general hardness of 1–15 dGH. A high water flow is preferred.
Is Silver Prochilodus peaceful or aggressive?
Silver Prochilodus is classified as mostly peaceful with an aggression score of 4 out of 10. They are generally well-suited to peaceful community tanks.
Can Silver Prochilodus live alone?
Yes, Silver Prochilodus can be kept singly or in a group. They are flexible and adapt well to both setups.
Does Silver Prochilodus have any special tank requirements?
Yes. Silver Prochilodus benefits from established algae (otocinclus) in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Does Silver Prochilodus need a lid on the tank?
Yes. Silver Prochilodus is a known jumper, and a tight-fitting lid or cover is essential to prevent escape. Even a small gap can be enough for a determined fish to leap out.
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 Silver Prochilodus
These fish are strong compatibility matches for Silver Prochilodus based on water preferences, temperament, adult size, and tank behavior.
Celebes Halfbeak
Nomorhamphus liemi
Ideal Tank MatesWrestling Halfbeak
Dermogenys pusilla
Ideal Tank MatesTiger Danio
Devario maetaengensis
Ideal Tank MatesSorong Rainbowfish
Melanotaenia fredericki
Ideal Tank MatesReticulated Stingray (Teacup Ray)
Potamotrygon orbignyi
Ideal Tank MatesRaspy River Stingray
Potamotrygon scobina
Ideal Tank MatesPlants That Suit Silver Prochilodus
These plants pair well with Silver Prochilodus based on shared water preferences, layout fit, and how likely they are to hold up in the same aquarium.
African Water Fern
Bolbitis heudelotii
Boivin's Aponogeton
Aponogeton boivinianus
Capuron's Aponogeton
Aponogeton capuronii
African Onion Plant
Crinum calamistratum
Afzel's Anubias
Anubias afzelii
Anubias Barteri
Anubias barteri
Fish Similar to Silver Prochilodus
Flagtail Prochilodus
Semaprochilodus insignis
A large, highly active South American river fish famous for its vividly striped tail and prolific algae-eating habits. They are a staple 'cleaner' in large monster fish setups alongside Arowanas and Stingrays. While peaceful towards other large species, they are fiercely intolerant of their own kind unless kept in large shoals. They are notorious plant destroyers.
Silver Rainbowfish
Chilatherina crassispinosa
An active, schooling rainbowfish native to the clear, fast-flowing streams of Northern New Guinea. Known for their energetic swimming patterns and silvery bodies, they require long aquariums with strong water flow and high dissolved oxygen. Best kept in groups of 6 or more.
Bulolo Rainbowfish
Chilatherina bulolo
A rare and highly active rainbowfish native to the fast-flowing mountain streams and white-water rapids of the Markham and Ramu river systems in Papua New Guinea. They possess a silvery body with a distinct black streak on the upper and lower edges of the caudal fin. Because of their specialized natural habitat, they require highly oxygenated, fast-flowing water and alkaline conditions to thrive in an aquarium.
Silver Datnoid (Silver Tigerfish)
Datnioides polota
A striking predatory fish known for its deep body and tiger-like stripes. Unlike other Datnoids, the Silver Datnoid is euryhaline and naturally inhabits estuaries; while it can survive in freshwater, it thrives in light brackish conditions. They are ambush predators with highly protrusible jaws capable of swallowing surprisingly large prey.
Giant Whiptail Catfish
Proloricaria prolixa
Proloricaria prolixa (formerly Loricaria prolixa), commonly known as the Giant Whiptail, is a large, heavily armored catfish endemic to the upper Paraná River basin in Brazil. They are specialized benthic grazers that require cooler subtropical temperatures, strong water flow, and highly oxygenated water. Despite reaching impressive sizes (up to 35cm/14in), they are generally peaceful and feed primarily on periphyton and biofilm.
Pink Tailed Chalceus
Chalceus macrolepidotus
A large, incredibly active, and fast-swimming characin from South America known for its shimmering silver body and striking pink tail. They are primarily surface dwellers and are notorious jumpers, so a tight-fitting lid is absolutely mandatory. While generally peaceful with larger tankmates, they are predatory and will consume small fish. They must be kept either singly or in a shoal of 6+; small groups often result in severe squabbling.