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L174 (Hypancistrus sp.)

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In relative terms this may be the "poor man's Hypancistrus zebra", but it is still a pricey and uncommonly seen catfish. Undeniably attractive, this catfish works well in community tanks alongside midwater fishes from the same environment such as tetras and hatchetfish.

Fish information (behaviour and breeding):

A typical Hypancistrus in terms of overall care. Territorial but compatible with its own kind if not overcrowded, it should be provided with a mix of rocky crevices and open sandy areas. Do not mix with other territorial catfish or cichlids, and certainly not with substantially larger plecs. Because of its need for fast-flowing, well oxygenated water with low levels of nitrate, this species is best suited to tanks with fishes that need similar conditions. As with other Rio Xingu fish, warm, slight acidic water conditions are best.

Eats a variety of foods including some algae, but is more of a opportunistic feeder than an algae-eater, and prefers catfish pellets, small worms, insect larvae, etc. Not especially keen on vegetables or wood, though bogwood should be provided as a source of dietary fibre.

Not yet bred in captivity, but presumably similar to Hypancistrus zebra.

Family Group: L Numbers
Distribution Rio Xingu, Brazil
Temperature 26-32C
Size Around 10 cm
Water Parameters Prefers soft and acidic water
Water PH 6.5-7.5

Useful sources of information:

DATZ are the original source of L number information.
Other information on L numbers can be found from the book All L Numbers published by Aqualog.
On the web, a comprehensive source of information on L Numbers and catfish can be found at and also