Pseudacanthicus leopardus (L114) Breeding Guide

How to breed the Leopard Cactus Pleco (L114): a cave-spawning loricariid with paternal egg care, demanding warm, soft water and dedicated rough-walled caves.

Overview

Pseudacanthicus cf. leopardus (L114) is a spiny loricariid catfish mostly collected in the rio Negro basin of Amazonas state, Brazil, particularly the rio Demini. According to Seriously Fish it reaches 200-250 mm standard length and is a cave-spawner with male brood care that has been bred in aquaria. Successful breeding is uncommon and demands a large, well-oxygenated set-up that mimics a flowing river.

Sexing

Seriously Fish notes that adult males possess a broader head and far more extensive odontode (skin-tooth) development than females, especially on the leading pectoral-fin rays and the interopercular region. Tropical Fish Hobbyist adds that males develop longer pectoral and ventral fins and thicker pectoral spines, while a conditioned female shows a noticeably wider belly. Sex can usually be told from around 15 cm.

Conditioning

These are carnivorous plecos. Seriously Fish and Tropical Fish Hobbyist recommend conditioning on meaty items: frozen Daphnia, mosquito larvae and bloodworm, crustaceans, and sinking meaty tablets, rather than relying on vegetables. Home-made gel foods tailored with meatier ingredients are also useful. A female is ready when her belly is clearly broader than the male's.

Breeding Setup

Tropical Fish Hobbyist recommends a tank at least 100 cm long and 40-50 cm deep, furnished with caves, driftwood and stones with large openings, plus strong filtration. The breeding cave should be about 5 cm longer than the male's total length and just wide enough for him to enter with his pectoral fins half-extended; crucially its interior surface should be rough so the clutch can grip well.

Spawning Behavior & Trigger

Seriously Fish gives a care range of 24-30 °C and pH 5.5-7.5. For breeding, Tropical Fish Hobbyist recommends warm water of roughly 27-32 °C that is soft and neutral to slightly acidic, with large water changes of soft, slightly acidic (rain) water used to stimulate interest. The female enters the cave and lays the eggs along the top while the male fertilises them; the male then occupies the cave and guards the clutch.

Egg & Fry Care

Tropical Fish Hobbyist reports that an adult female can produce about 500 eggs. The eggs hatch after six to seven days, and the larvae take about five days to use up their yolk sacs while the male continues to tend them. Once the yolk is absorbed the juveniles disperse into the tank and need several small feedings a day.

Common Challenges

Tropical Fish Hobbyist warns that juveniles often begin dying at around 3 cm, usually because of overcrowding: a build-up of bacterial load and lack of space and hiding areas in undersized tanks. Adequate volume, frequent feeding and good water quality are needed to carry the brood through this stage.