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South American Blackwater Stream
BIOTOPE AQUARIA
A biotope aquaria is an aquarium that is set-up to simulate a natural habitat. The fish, plants, water chemistry, and furnishings are similar to those that can be found in a specific natural setting.
Always check compatibility! Some species from a particular habitat are not suitable tankmates. For example, the Peacock Bass will eat small tetras since they are their natural food in the wild.
The biotope aquarium can be adapted by adding species from disparate areas that have similar water requirements.
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[Photos from various habitats/biotopes]
Freshwater fish species listed by country and ecosystem -- excellent resources for constructing biotope aquaria.
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South American Blackwater Stream
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Discus Biotope Aquarium
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Angelfish Biotope Aquarium
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Angelfish Biotope Aquarium
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Rio Negro, Brazil
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Rio Negro, Brazil
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South American Blackwater Stream
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Blackwater ponds, creeks, and rivers originate in the rain-forest. In the slow-moving waters, acids are leeched from decaying vegetation creating very transparent, tea-colored water. These waters have almost no measurable water hardness and an acidic pH.
The substrate in blackwater habitats is typically leaf litter over a base of fine clay or sand. Decaying wood and plant matter is common especially in flooded igapo forest. There are many submerged terrestrial plants, many of which retain most of their leaves.
ECOSYSTEMS:
Rio Negro
WATER:
pH: 4.5-6.5, 0-4 dH, 81-86 F (27-30 C)
TANK:
Furnish the tank with bog wood and a dark, fine gravel substrate.
There can be subdued lighting and still water.
Peat filtration is recommended.
PLANTS:
Sword plants, Heteranthera, Ceratophyllum, Vallisneria, Cabomba
FISH:
Discus, Angelfish, Dwarf Cichlids, Tetras, Hatchetfish, Corydoras, Farlowella, Loricarids.
PHOTOS:
Blackwater River:
Brazil,
Venezuela,
Rio Negro (Brazil),
Rio Negro (Brazil),
Rio Negro (Brazil),
Rio Negro (Brazil),
Mixing of Waters - Rio Negro and the Amazon,
Mixing of Waters - Rio Negro and the Amazon,
Brazil,
Brazil,
Rio Negro Beach,
Rio Negro Beach.
Blackwater Lake:
Brazil,
South American Blackwater Creek
Mountain blackwater creek:
Venezuela,
Venezuela,
Venezuela.
Blackwater creek:
Venezuela
Igapo:
Brazil,
Brazil,
Brazil,
Brazil,
Brazil,
Brazil.
Altum Angelfish Biotope Aquarium Pictures
Discus Biotope Aquarium Pictures
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Other Biotope Resources
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Recent news
Sushi lovers may be eating Critically Endangered species without knowing it
(11/24/2009)
Restaurants sampled in New York and Colorado are serving up bluefin tuna without informing their customers know they are dining on an endangered species, according to a new study in PLoS ONE. Using DNA barcoding researchers from the Sackler Institute for Comparative Genomics at the American Museum of Natural History found that nearly a third of tuna sampled in one restaurant in Colorado and thirty restaurants in New York served bluefin tuna, and nine of the restaurants did not label the tuna as bluefin.
Videos and Photos: over 17,000 species discovered in waters beyond the sun's reach
(11/23/2009)
Deep, deep below the ocean's surface, in a world of ever-present darkness, one would expect few, if any, species would thrive. However, recent expeditions by the Census of Marine Life (CoML) have found an incredible array of strange, diverse, and amazing creatures. To date a total of 17,650 species are now known to live in frigid, nearly lightless waters beyond the photic zone—where enough light occurs for photosynthesis—approximately 200 meters deep. Nearly 6,000 of these occur in even harsher ecosystems, below depths of 1,000 meters or 0.62 miles down.
Using fish as livestock feed threatens global fisheries
(11/18/2009)
Fish doesn't just feed humans. Millions of tons of fish are fed every year to chickens, pigs, and even farmed fish even in the midst of rising concerns over fish stocks collapses around the world. Finding an alternative to fish as livestock feed would go a long way toward preventing the collapse of fish populations worldwide according to a new paper in Oryx.
ICCAT fails to protect critically endangered tuna—again
(11/15/2009)
The International Commissions for the Conservation of Atlantic Tuna (ICCAT) ignored the advice of its scientists to end fishing of the Atlantic bluefin tuna. Instead ICAAT set a quota of 13,500 tons of fish. This is not the first time ICCAT has flouted its own researchers' advice: it has repeatedly set quotas well-above its researchers' recommendations.
Governments, public failing to save world's species
(11/04/2009)
According to the International Union for the Conservation of Nature's (IUCN) 2008 report, released yesterday, 36 percent of the total species evaluated by the organization are threatened with extinction. If one adds the species classified as Near Threatened, the percentage jumps to 44 percent—nearly half.
Atlantic bluefin tuna should be banned internationally: ICCAT scientists
(10/29/2009)
Scientists with the International Commission for the Conservation of Atlantic Tuna (ICCAT) have said in a new report that a global ban on Atlantic bluefin tuna fishing is justified. ICCAT meets in November to decide if they will follow their scientist's recommendations.
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