Leiarius longibarbis. Marbled Pim . L. longibarbis was described 15 years earlier than L. marmoratus and therefore that name was given precedence.

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A layer of large, smooth pebbles is a better option.

A large specimen can easily destroy glass heaterstats, thermometers etc. Larger specimens can be offered whole fish fillets use white fish.

Marbled Pim

If possible, choose a sump — type arrangement, as this allows most of the equipment to be located outside the tank. You must be logged in to post a comment. An adult specimen needs only a single meal per week at most. This is now considered a junior synonym of L. All too often, juveniles are sold without adequate information regarding their long term care.

Also take care not to overfeed. These cats can and will attain something close to their maximum size in captivity, and will marmoratsu so quite quickly. Particularly suitable companions include Doradids such as Oxydoras nigerMegalodoras urunoscopus or Pterodoras granulosus. Risks involved with feeding these include the potential of disease introduction.

Leiarius longibarbis (Marbled Pim) — Seriously Fish

It lurks among submerged tree roots and other refuges during daylight hours, emerging at night to feed. Feed every other day when juvenile but as the fish grows reduce the frequency.


Further confusion arises when attempting to distinguish it from the very similar, but much rarer Perrunichthys perruno.

Very few fellow hobbyists will have the facilities to do so, either. Reproduction Unreported in captivity. You can however add some large chunks of bogwoodbeech branches or smooth rocks if you wish. Some hobbyists simply leave the substrate marmkratus altogether, which certainly makes cleaning the tank an easier task.

Inhabits large rivers and lakes. Sexual Dimorphism Virtually impossible to sex by external characteristics. The only visible difference appears to be in the number of dorsal fin rays.

This species should not be fed the meat of mammals such as beef heart or chicken.

Leiarius marmoratus : fisheries, aquarium

Some of the lipids contained in these meats cannot be properly metabolised by the fish, and can cause excess deposits of fat and even organ degeneration. Apparently they also differ slightly in the morphology of the skull. Piscivorous by nature, but usually adapts well to dead foods in captivity. Adult females are likely maarmoratus be stockier in build than males. Habitat Inhabits large rivers and lakes.

It also has an amazing set of very long barbels that can move independently of each other. Juveniles enjoy hiding places in the form of bogwoodtangles of roots and branches, rock piles or lengths of plastic piping of a suitable bore. A large and efficient biological filter is needed to cope with the amounts of waste produced by a fish of this size. It relishes meaty items such as prawns, mussels, cockle, lancefish or earthworms.


Virtually impossible to sex by external characteristics. Choice of substrate can be an issue, as most grades of gravel can either be swallowed or become caught in the delicate gills. Many aquarists buy a young specimen with the intention of buyinga bigger tank as it grows.

Human uses

This can lead to maemoratus problems in the long term. If the tank is also very deep larger characins, cyprinids, South american arowana and various cichlids such as Cichla species can also be added. Try to keep the diet varied or you may find it becomes too accustomed to a particular food and is reluctant to accept anything else. Most of the available literature still lists the species with the invalid name L.