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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If the tank is also very deep larger characins, cyprinids, South american arowana and various cichlids such as Cichla species can also be added. All too often, juveniles are sold without adequate information regarding their long term care.

Habitat Inhabits large rivers and lakes. Larger specimens can be offered whole fish fillets use white fish.

A large and efficient biological filter is needed to cope with the amounts of waste produced by a fish of this size. Most of the available literature still lists the species with the invalid name L. It relishes meaty items such as prawns, mussels, cockle, lancefish or earthworms.

This can lead to health problems in the long term.

Virtually impossible to sex by external characteristics. Inhabits large rivers and lakes.

Human uses

It lurks among submerged tree roots and other refuges during daylight hours, emerging at night to feed. Reproduction Unreported in captivity.

jarmoratus 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.


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

The only visible difference appears to be in the number of dorsal fin rays. Risks involved with feeding these include the potential of disease introduction. Very few fellow hobbyists will have the facilities to do so, either.

Choice of substrate can be an issue, as most grades of gravel can either be swallowed or become caught in the delicate gills. Sexual Dimorphism Virtually impossible to sex by external characteristics.

Marbled Pim

Juveniles enjoy hiding places in the form of bogwoodtangles of roots and branches, rock piles or leiariuz of plastic piping of a suitable bore. Adult females are likely to be stockier in build than males. It also has an amazing set of very long barbels that can move independently of each other.

An adult specimen needs only a single meal per week marmorafus most. Many aquarists buy a young specimen with the intention of buyinga bigger tank as it grows. You must be logged in to post a comment.

Leiarius longibarbis (Marbled Pim) — Seriously Fish

This is now considered a junior synonym of L. A large specimen can easily destroy glass heaterstats, thermometers etc. A layer of large, smooth pebbles is a better option. Further confusion arises when attempting to distinguish it from the very similar, but much rarer Perrunichthys perruno. These cats can and will attain something close to their maximum size in captivity, and will do so quite quickly.


Also take care not to overfeed. Piscivorous by nature, but usually adapts leairius to dead foods in captivity.

Particularly suitable companions include Doradids such as Oxydoras nigerMegalodoras urunoscopus or Pterodoras granulosus. Some of the lipids contained in these meats cannot be properly metabolised by the fish, and can cause excess deposits of fat and marmoratuss organ degeneration. 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.

Some hobbyists simply leave the substrate out leiarous, which certainly makes cleaning the tank an easier task. Feed every other day when juvenile but as the fish grows reduce the frequency.

Apparently they also differ slightly in the morphology of the skull.