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Fish Freshwater Care: easy Peaceful

Chocolate Whiptail

Rineloricaria lanceolata
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Other names: Lancer whiptail, Whiptail catfish, Hemiloricaria lanceolata, Rineloricaria lanceolata
Group: Plecos and suckermouth catfish · Family: Loricariidae · Origin: South America — wide distribution in the Amazon basin and the basins to its south

A 10–12 cm whiptail with dark bands on a brown body and a dark dorsal fin. It tolerates warmer water than its relative R. parva and breeds readily in tubes.

Will it suit my tank?

Last updated October 16, 2026

Temperature
22–28°C
pH
6–7.5
Hardness
2–15 dGH
Adult size
12 cm
Minimum tank size
60 liters
Social structure
Solitary
Swimming zone
Bottom
Diet
Omnivore
Breeding
Substrate spawner

Water parameters

Temperature22–28°C
pH6–7.5
General hardness (GH)2–15 dGH
Recommended range
Considered shrimp safe Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

The chocolate whiptail differs from the common whiptail (R. parva) in the dark bands on its brown body and its distinctly dark dorsal fin. It lives over a wide area, above all in the Amazon basin, so the temperature requirements of fish of different origins can vary somewhat.

Adults reach 10–12 cm. It is a calm, easy-to-keep species that breeds readily in the aquarium; it hybridizes easily with the red lizard whiptail (L010a). The male guards the eggs laid inside the tube until the fry hatch.

Tank Setup

October 16, 2026 · Suggest an edit
  • 60 liters for a pair or a small group.
  • Soft sand, roots and tubes 2–3 cm in diameter for breeding.
  • 24–27°C, clean and well-oxygenated water; gentle flow.

Diet

October 16, 2026 · Suggest an edit

Omnivorous. Sinking tablets and granules, frozen bloodworms, brine shrimp and daphnia, and blanched vegetables can be given in rotation.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

Calm and peaceful; it can lie motionless on the sand for hours. It does not harm other fish, shrimp or plants.

Good companions: Small tetras, rasboras, corydoras, otocinclus, dwarf cichlids, shrimp.

Avoid: Cichlids that claim the bottom, greedy and fast bottom dwellers, fin-nipping fish.

A short profile for this species

The Chocolate Whiptail page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Usually compatible

Should not be kept together

Hobbyist notes

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Change history and contributors
  1. Page created · October 16, 2026