Apistogramma pantalone

By Pet Zone SD Team • October 2026

Overview

Apistogramma pantalone is one of the smallest species on this site, and the only one named after a stage character rather than a person, place, or physical trait. Römer, Römer, Soares & Hahn formally described it in 2006 in Cichlid Atlas vol. 2, naming it for Pantalone — the elderly merchant stock character of Italian Commedia dell'Arte theater — because the species' courtship display struck the describers as unusually stiff and clumsy, much like the character's exaggerated stage mannerisms. It's a genuinely different kind of naming story from the trade-name confusion behind megastoma's "Kelleri" years or norberti's "großmaul," and distinct again from mendezi's human namesake.

The species is known only from a small area of northern Peru: the type locality sits near Alvarenga in the Santa María District of Loreto's Maynas Province, on a minor tributary of the Río Nanay. A 2019 taxonomic revision (Vertebrate Zoology 65(3)) places it among close relatives of the A. nijsseni complex, grouped with A. martini and A. nijsseni itself — making pantalone a taxonomic cousin of a species already covered on this site, distinguished from the similar A. wolli (lyre-shaped caudal fin) and A. feconat (red-and-black caudal banding, which pantalone lacks).

Color & Identification

Pantalone is a small, slender apisto consistent with its placement near nijsseni — expect the typical Apistogramma sexual dimorphism, with males larger and more extensively finned than females. Reference sources describe no single standout color marking the way norberti's dorsal spot or iniridae's sailfin does; its real distinguishing features are structural rather than ornamental — dorsal fin with 16 spines and 7 soft rays, anal fin with 3 spines and 5–7 soft rays, and the rounded (not lyre-shaped) caudal fin that separates it from A. wolli.

Tank Setup

This is the one place pantalone genuinely breaks from most of this site's roster. Its native habitat is small, sandy, vegetation-free streams with fast-flowing, crystal-clear, acidic water — not the slow, leaf-littered, tannin-stained blackwater that species like norberti or baenschi come from.

• Tank size: Given its small adult size (~1.4"), a 15–20 gallon tank suits a pair or small group comfortably.
• Substrate & décor: Fine sand with minimal plant cover reflects the open, current-swept streams this species is collected from — a change from the heavily planted, dim setups recommended for most other apistos on this site.
• Filtration & flow: Unlike most apistos here, pantalone comes from fast-flowing water — add some gentle current and strong oxygenation (an airstone or spray bar) rather than keeping the tank still.
• Water changes: Regular, moderate water changes support the clear, well-oxygenated conditions this species is adapted to; see our water parameters guide for building and holding the right chemistry.

Feeding

No pantalone-specific feeding research is available, so treat it as a typical small benthic-feeding apisto: offer live or frozen Daphnia, Artemia, and bloodworm as the backbone of its diet, supplemented with good-quality sinking pellets or granules. See our general feeding guide for conditioning diets that apply across the genus.

Temperament & Compatibility

Specific compatibility data for pantalone is thin in the available aquarium literature, but its close relative nijsseni is peaceful and choosy about mates, and pantalone's small size points the same direction — likely workable in a quiet community with small, calm tankmates rather than needing to be kept alone. As with every species on this site, don't house it with other Apistogramma species.

Breeding

Pantalone is a cave or crevice spawner, consistent with the rest of the genus, and reference sources recommend a harem setup — one male with several females — when no bonded pair has formed naturally. Provide a specific spawning surface, such as a small upturned pot, and condition the group beforehand on live or frozen foods. Narrow water chemistry to the softer end of its range for breeding: pH 6.0–6.5 and around 5 dGH. No detailed fry-rearing reports are available for this species specifically — follow our general breeding guide for the broader conditioning-to-fry-rearing process, and expect some trial and error given how little has been published on this species in the hobby.

Sourcing Notes

Pantalone is genuinely obscure in the trade — none of the aquarium-specific reference sources checked for this guide (FishBase, Cichlidae.com, PlanetCatfish) list a trade history, an established common name, or retail availability, which is unusual for a species that's been formally described since 2006. Combined with its tiny known wild range, that points to a fish you're more likely to encounter through specialist importers or breeder networks than general retail. If you do find it offered, verify the identification carefully against its distinguishing caudal-fin shape — see our general sourcing guide for what to ask a seller on an uncommon species.

Final Thoughts

Pantalone rewards the kind of keeper who likes a genuine outlier: a tiny apisto from fast-flowing, well-oxygenated water rather than still blackwater, with a one-of-a-kind naming story and a known range small enough to raise real conservation questions despite its official Data Deficient rating. If you already keep nijsseni and want to explore its lesser-known taxonomic relatives, pantalone is worth tracking down through specialist channels — just go in expecting to do some of the research yourself, since very little has been published on it outside the original scientific description.

Frequently Asked Questions

Why is Apistogramma pantalone named after a theater character?

Römer, Römer, Soares & Hahn, who formally described the species in 2006 (published in Cichlid Atlas vol. 2), named it for Pantalone, the elderly stock merchant of Italian Commedia dell'Arte theater — a reference to the species' unusually stiff, clumsy courtship display, which reminded the describers of the character's exaggerated stage movements. It's the only Apistogramma on this site named for a fictional character rather than a person, place, or physical feature; compare mendezi (named for activist Chico Mendes) or gibbiceps (named for a deformity its type specimen had).

What water parameters does Apistogramma pantalone need?

Wider and more alkaline-tolerant than most apistos on this site: FishBase-aggregated field and aquarium data give pH 6.4–8.0 and 62.6–80.6°F (17–27°C). For breeding specifically, narrow that to a softer, slightly acidic pH 6.0–6.5 with soft water around 5 dGH. The wider general range reflects its native habitat — small, fast-flowing, crystal-clear streams over sand — rather than the still, tannin-stained blackwater most other apistos on this site come from, so don't assume it needs the same deep-acidic setup as baenschi or elizabethae.

How big does Apistogramma pantalone get?

Small even by apisto standards: around 1.4" (36mm) standard length, with FishBase listing a female maximum of 3.6cm SL. That puts it in the same size class as this site's smallest species, baenschi and elizabethae, rather than mid-sized species like cacatuoides or agassizii.

Is Apistogramma pantalone endangered?

Its formal IUCN Red List status is Data Deficient, last assessed 25 April 2014 — there isn't enough population data for a full threatened/secure classification. Planetcatfish's reference notes that given how small and localized its known range is (a single tributary system of the Río Nanay in Peru's Loreto region), the species should probably be treated as vulnerable in practice even though no formal at-risk rating has been assigned — a more cautious read than the bare Data Deficient label alone suggests.

How does Apistogramma pantalone relate to other species on this site?

A 2019 taxonomic revision (Vertebrate Zoology 65(3)) places pantalone among close relatives of the A. nijsseni complex, grouping it with A. martini and A. nijsseni — making it a taxonomic cousin of nijsseni, already covered on this site. The same paper distinguishes pantalone from the similar A. wolli (which has a lyre-shaped rather than rounded caudal fin) and A. feconat (which shows red-and-black caudal fin bands that pantalone lacks).