Reedfish (Ropefish)

The Reedfish (Ropefish), scientifically known as Erpetoichthys calabaricus, belongs to the Oddballs family group. Adults reach a maximum size of approximately 37 cm and have a eel body shape with a slow growth rate. Classified as mostly peaceful, this species primarily occupies the bottom and mid-level zones of the aquarium and produces a medium level of biological waste.

To thrive, the Reedfish (Ropefish) requires a freshwater only aquarium with a minimum volume of 180 litres and a tank length of at least 120 cm. Water temperature should be maintained between 22°C and 28°C, with a pH range of 6–7.5 and a general hardness of 5–20 dGH. A low water flow is preferred.

Due to its specialist needs, the Reedfish (Ropefish) is best suited for fishkeepers who can provide a carefully planned setup. 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.

When setting up an aquarium for the Reedfish (Ropefish), a low 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, smooth gravel or rounded substrate to protect their sensitive barbels, driftwood, which can serve as both a hiding place and a dietary supplement, and dense planting to provide cover, break sightlines, and reduce stress. Keepers should note that a tight-fitting lid is essential, as this species is a known jumper.

Classified as mostly peaceful, the Reedfish (Ropefish) is a social species that requires the company of its own kind to thrive. When choosing tankmates, any fish small enough to fit in its mouth will likely be eaten, ornamental shrimp are not safe companions, 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.

The Reedfish (Ropefish) is a predatory species that will readily consume small fish, so nano or bite-sized tankmates should be avoided, will hunt and eat ornamental shrimp, making it unsuitable for shrimp-focused setups, and is primarily active at dusk and dawn, so offering food shortly after lights-off ensures it receives adequate nutrition.