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Big, Bad Wolffish

Trairas are the most commonly kept species, but all wolffishes present challenges that can be met by aquarists wanting to keep them.

By Oliver Lucanus

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The Amazonian wolffishes presently comprise a complex of 14 species belonging to three different genera. But only three species are frequently imported for the aquarium hobby. This is still enough to make the wolffishes popular with predatory fish enthusiasts. The commonly imported species are the red wolffish (Erythrinus erythrinus), the striped wolffish (Hoplerythrinus unitaeniatus) and the common black wolffish (Hoplias malabaricus). Very rarely imported are Hoplias lacerdae, H. macrophthalmus and H. aimara. The other eight species have almost never been kept in aquaria.

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