Home / Fishes / Gouramis, bettas, snakeheads / Malabar leaffish
No federal permit to keepMalabar leaffish
Pristolepis marginata
Fishes › Gouramis, bettas, snakeheads (Anabantiformes) › Pristolepididae (Malayan leaf fish relatives)
The Malabar Leaffish (Pristolepis marginata) is a species of freshwater fish in the family Pristolepididae.
Care at a glance
Species-specific aquarium care
- Tank: At least 30 in long and 12 in front to back for one adult (adults commonly reach about 5.9 in / 15 cm).
- Water: Freshwater.
- Layout: Uses both the bottom and open water: give open swimming space plus cover near the substrate.
Calculated from this species' own FishBase record: tank size from its typical adult length and swimming zone, water values from its recorded ranges. The group guide below fills in general care.
Care guide
Species care notes
- Tank: a base of at least 47 × 12 in (roughly 29 US gallons); space needed is rated “large tank”.
- Water: a fairly wide range, from slightly acidic to slightly alkaline, 73–82 °F, pH 6.5–7.5, 5–12 dGH.
- Difficulty: Moderate (Seriously Fish rating).
Short excerpts from the species profile:
- Setup: “An aquarium with a decent flow rate, decorated with a sandy substrate, smooth rocks and driftwood roots would simulate the natural habitat of P.”
- Diet: “Generally a carnivorous species but will also take nuts and seeds in nature.”
- Tankmates: “This fish will probably swallow any tankmate small enough to be seen as food.”
- Breeding: “Although no data is available on breeding this species in the hobby, it has been achieved in aquaria, and the fish is now being produced commercially in the Far East.”
From the Seriously Fish profile for this species, which has the full habitat, maintenance, diet, behaviour and breeding write-up 167
Malayan leaf fish relatives
Applies to most species in this group. Habitat: These Asian freshwater mudperches occupy contrasting habitats: vegetated slow waters for P. fasciata, lowland streams and peat habitats for P. grootii, and clear rapid streams for P. marginata. [fg321-leaf-fas, fg321-leaf-gro, fg321-leaf-mar]. Individual species can differ, so compare with the species numbers above and the linked sources.
Housing & setup
- Match circulation to species: sheltered slow-water zones for P. fasciata, but flowing, well-oxygenated stream conditions for P. marginata; these are habitat-based housing inferences.
- For P. fasciata, provide vegetated margins and cover with open swimming space; this arrangement follows its documented habitat.
- Size housing for the identified adult: recorded maxima are 31 cm total length for P. fasciata, 18.4 cm total length for P. grootii and 15 cm standard length for P. marginata; no verified minimum tank dimensions were found.
- Use established biological filtration, test water quality and quarantine additions.
Climate & lighting
| Water | 73.4–82.4°F |
Diet
- For P. fasciata, include plant material or algae-based food; its wild diet contains filamentous algae and submerged plants.
- Offer appropriately sized aquatic insects and crustaceans as part of a varied ration.
- Fruit and seeds are documented natural foods of P. fasciata; this is an omnivore, not a proven obligate fish-eater.
Social life
- A reliable family-wide grouping rule was not found; plan companions individually and monitor feeding access and aggression rather than assuming leaf-fish trade names imply compatibility.
Health watch
- Ammonia injury in inadequately cycled systems; a general aquarium-fish risk.
- Nitrite toxicity, especially in freshwater; a general aquarium-fish risk.
- Introduced skin or gill parasites, including freshwater ich; family-specific prevalence is undocumented.
Understanding the animal
About this animal
About this animal
It lives in the Western Ghats in India.
Quoted from the Wikipedia article “Pristolepis marginata” (CC BY-SA 4.0) 174
In the wild
In the wild
From this species’ own FishBase record (habitat, bottom type, water and breeding data), not its family. Good care copies these conditions.1
| Where it lives | Lives in freshwater, in rivers and streams. Uses both the bottom and open water. Inhabits clear and rapid streams. |
| Water it lives in | Freshwater. |
| Climate | Tropical climate. |
Native climate (measured)
Native climate (measured)
| Warm-season highs | about 91°F (up to 93°F in the hottest sampled areas) |
| Cool-season lows | about 69°F (down to 61°F in the coldest sampled areas) |
| Average temperature | 73–81°F across sampled records |
| Relative humidity | 75–80% on average (driest month about 64%) |
| Rainfall | about 3216 mm a year, with strong wet and dry seasons |
Measured at 8 wild occurrence records sampled against WorldClim 2.1 climate data (1970–2000 averages). Air conditions in the range are ecological context, not enclosure settings: microhabitats such as burrows, leaf litter or basking rocks can be cooler, warmer or more humid.
From the sources
From the sources
Quoted from the matching sections of reputable sources for this exact species. Specialist databases are used first; Wikipedia (community-edited, CC BY-SA 4.0) only fills gaps. Other sources are short credited quotes.
| Where it lives | Home ranges Population dynamics Growth parameters Max. ages / sizes Length-weight rel. Length-frequencies Mass conversion Recruitment Abundance Life cycle Reproduction Maturity Maturity/Gills rel. — FishBase |
| Biology | Inhabits clear and rapid streams. — FishBase |
Data and studies
The numbers
The numbers
Each bar is what one source reports. Where several sources weigh in, the dashed gold band marks their average.
Adult length
Maximum recorded length. Measured as standard length (snout to the base of the tail, not counting the tail fin). Fish in home aquariums often stay smaller than wild records.
Water temperature
Range the species tolerates; aim for the middle.
pH
Water hardness
Minimum tank footprint
Seriously Fish recommends a tank base of at least 47 × 12 in (about 29 US gallons).
Sources for this sheet
- FishBase (Froese & Pauly, eds.), version 24.07 Peer-reviewed researchThe global scientific database on fishes, maintained by a consortium of research institutions; every value is referenced.
- Seriously Fish species profiles Experienced keeper or breederLong-running aquarium reference written and peer-checked by experienced fishkeepers and ichthyologists; each profile covers habitat, tank size, water, diet, behaviour and breeding.
- FishBase: Pristolepis fasciata Peer-reviewed researchAdded in the 2026 source-checked care-guide review.
- FishBase: Pristolepis grootii Peer-reviewed researchAdded in the 2026 source-checked care-guide review.
- FishBase: Pristolepis marginata Peer-reviewed researchAdded in the 2026 source-checked care-guide review.
- MSD Veterinary Manual: Management of Aquarium Fish Zoo, university or veterinaryAdded in the 2026 source-checked care-guide review.
- MSD Veterinary Manual: Parasitic Diseases of Fish Zoo, university or veterinaryAdded in the 2026 source-checked care-guide review.
- Wikipedia (species article) Community referenceFree encyclopedia; useful overviews with their own citations. Intro text is quoted under CC BY-SA 4.0.