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For freshwater aquaria, gravel is the most common substrate. To prevent damage to fish, gravel should not be sharp. Aquarium gravel can be as coarse as pea-sized or as fine as 1–2 mm. [1] It is available in a number of colors, and may be naturally colored or dyed, and may have a polymer seal to ensure it does not affect water chemistry. [1]
These fish are often kept by aquarists, as they are dutiful algae-eaters and smaller in adult size than the common plecos usually seen in pet shops. They reach up to 15 cm (5.9 in) in males, and 12 cm (4.7 in) in females. Their recommended temperature is 23–27 °C (73–81 °F). Their lifespan is up to 12 years.
Symphysodon (colloquially known as discus or discus fish) is a genus of cichlids native to the Amazon river basin in Brazil.Due to their distinctive shape, calm behavior, many bright colors and patterns, and dedicated parenting techniques, discus are popular as freshwater aquarium fish, and their aquaculture in several countries in Asia (notably Thailand) [1] is a major industry.
Substrate is the earthy material that forms or collects at the bottom of an aquatic habitat. It is made of sediments that may consist of: Silt – A loose, granular material with mineral particles 0.5 mm or less in diameter.
Tank size Temperature range pH range Water Hardness Bristlenose pleco, bushynose pleco: Ancistrus spp. The bristlenose genus has at least 59 identified species and many others yet to be named. [16] Males and female both have long "bristles" on their nose, the males having distinctly longer ones. 72-84 F (20-27 C) Adonis pleco, polka dot lyre ...
The taxonomy is disputed, but FishBase follows a review of the genus from 2006. [2] [8]In 2007 it was suggested that the correct scientific name of the blue/brown discus is S. haraldi, whereas S. aequifasciatus is the correct name for the green discus.
A. ocellatus fish are biparental substrate spawners, though detailed information regarding their reproduction in the wild is scarce. Young Oscar, about 2 in. In captivity, pairs are known to select and clean generally flattened horizontal or vertical surfaces on which to lay their eggs. [citation needed].
The female deposits a line of eggs on the spawning substrate, followed by the male, which fertilizes the eggs. This process is repeated until a total of 100 to more than 1,200 eggs are laid, depending on the size and health of the female fish.
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