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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Choice of maarmoratus can be an issue, as most grades of gravel can either be swallowed or become caught in the delicate gills. Most of the available literature still lists the species with the invalid name L. Piscivorous by nature, but usually adapts well to dead foods in captivity.

Many aquarists buy a young specimen with the intention of buyinga bigger tank as it grows.

If the tank is also very deep larger characins, cyprinids, South american arowana and various cichlids such as Cichla species can also be added. Inhabits large rivers and lakes. Adult females are likely to be stockier in build than males. The only visible difference appears to be in the number of dorsal fin rays.

You must be logged in to post a comment. Some hobbyists simply leave the substrate out altogether, which certainly makes cleaning the tank an easier task.

Human uses

Also take care not to overfeed. Further confusion arises when attempting to distinguish it from the very similar, marmoeatus much rarer Perrunichthys perruno. A layer of large, smooth pebbles is a better option.


Larger specimens can be offered whole fish fillets use white fish. Sexual Dimorphism Virtually impossible to sex by external characteristics. A large and efficient biological filter is needed to cope with the amounts of waste produced by a fish of this size. If possible, choose a sump — type arrangement, as this allows most of the equipment to be located outside the tank. You can however add some large chunks of bogwoodbeech branches or smooth rocks if you wish.

It relishes meaty items such as prawns, mussels, cockle, lancefish or earthworms.

Reproduction Unreported in captivity. Particularly suitable companions include Doradids such as Oxydoras nigerMegalodoras urunoscopus or Pterodoras granulosus. An adult specimen needs only a single meal per week at most.

Mamoratus is now considered a junior synonym of L. Risks involved with feeding these include the potential of disease introduction. This species should not be fed the meat of mammals such as beef heart or chicken.

Habitat Inhabits large rivers and lakes. 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. It also has an amazing set of very long barbels that can move independently of each other. Feed every other day marmogatus juvenile but as the fish grows reduce the frequency.


Virtually impossible to sex by external characteristics.

Leiarius – Wikipedia

These cats can and will attain something close to their maximum size in captivity, and will do so quite quickly. Juveniles enjoy hiding places in the form of bogwoodtangles of roots and branches, rock piles or lengths of plastic piping of a suitable bore.

Apparently they also differ slightly in the morphology of the skull. A large specimen can easily destroy glass heaterstats, thermometers etc. 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.

This can lead to health problems in the long term.

Marbled Pim

It lurks among submerged tree roots and other refuges during daylight hours, emerging at night to feed. Very few fellow hobbyists will have the facilities to do so, either. All too often, juveniles are sold without adequate information regarding their long term care.