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Retired Staff
Apr 8, 2009
All assigned numbers: L411

Name: Hypancistrus sp. Monte Dourado

Common Names: Monte Dourado

Location: Rio Tapajós Brazil


Appearance: L-411 was previously commonly seen on the markets listed as L-260. However, by virtue of its larger size and distinct patterning, it was quickly asserted to be a different fish, known later as an animal hailing from the monte dourado region of the Rio Jari. A fairly hefty fish, reaching ~5â€, it is distinguished from other similar sized animals, save perhaps L-66, by its complex networked patterning. It is also bulkier, then most comparable hypancistrus, with a thick profile throughout. Its regularly faded coloration is also quite distinct. Still, it is regularly portrayed as L-260, due to very similar striping on the major fins. However, the vermiculations are finer and more concentrated in L-411, and as aforementioned, it does not maintain as consistent of a dark base color as L-260. Very young, less striped individuals still bear a shocking resemblance to L-260, so do bear that in mind-hoever, the faded appearance begins to show at around 3 weeks or so, so there really shouldn't be any confusion.**

L-411: note the bulky body features and faded coloration.

More info: Identification of Hypancistrus

Compatibility: Fairly peaceful plecs, can be kept with corys or other mid water fish. Ideally when breeding keep them in a species only tank.

Sexing and Breeding: Mature males develop cheek and pectoral odontodes to a greater extent than females. Course body hair is also visible on well conditioned mature males.Males become almost jet Black when breeding. Breeding is similar to other species of hypancistrus, male will trap female for around 2-3 days whilst vibrating to encourage her to spawn. Once the eggs are laid the male will guard the eggs in his cave usually keeping the clutch in his mouth breathing over them. Eggs usually hatch in 5-7 days, egg sacks are used up within 5-10 days.

Diet: Earthworm pellets, Sinking carnivore wafers, Bloodworm pellets, algae wafers, tetra prima, Frozen bloodworm, Tetra doromin. Anything meaty will usually be eaten with no problems.

Water parameters: Temp 27-30C.
Nitrates as low as possible. Tds as low as possible. PH 6.5-7.5

Max Size: 4.5" TL

Bred by: st24rsap, windy

Breeding Log: See below. For comments and questions, please use original thread L411 Log

Additional Comments::

Hypancistrus youngsters may require a more vegetable based diet according to Back to Nature Lnumbers book.

** Thank you to cup for permission to use the profile information from the Identification of Hypancistrus article

Profile supplied by st24rsap www.plecoheaven.com


Apr 21, 2009
Just some info on one of my current Hypancistrus breeding projects

Tank details
100L clear seal tank
Eheim 2224 external + difuser
Under gravel filter system powered by 400lph air pump
Lots of slate, caves & a bit of bogwood
300ppm TDS
Temp 28-30C
15-25% daily water changes. Gravel Vac & filter clean every 3-4 weeks
8 Adult L411, 3 male 5 females
6 Corydoras Panda

The group has been back together for about 2 months now after being split up for a few months previously, they are currently on the 6th spawn in the 2 months. As soon as the fry are removed from the Alpha males cave he has another female trapped and spawns almost straight away.

Full Tank picture

Eggs in tumbler

Fry just hatched

Fry around 4 days old

Fry around 10 days old

Adult female after a session with the Alpha male

Some of the larger fry caught during a full tank clean

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