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The emperor tetra is a placid aquarium fish and will be disturbed by more boisterous species. It grows to 4.2 cm. [3] It prefers a pH of 6.5, a hardness of 3–6 dKH and a temperature of 23–27 °C. It does not school as readily as most tetras, and a pair appears happier than with most tetras.
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The bleeding heart tetra is distinguished by the small red spot on both sides of the fish. This fish is very prone to diseases, and can grow larger than most tetra species. [30] Bloodfin tetra: Aphyocharax anisitsi: 5 cm (2.0 in) Blue tetra: Knodus borki: 5 cm (2.0 in) Blueberry tetra: Hyphessobrycon wadai: 3.5 cm (1.4 in) Brittanichthys axelrodi
All but one of five known breeding sites for emperor penguins in a part of Antarctica experienced a “total breeding failure” during the 2022 season because of the loss of sea ice, according to ...
The flame tetra (H. flammeus) is bred in large numbers in captivity and common in the aquarium trade, but rare in the wild. [5] [6]Most of the 144 species in the genus have not been rated by the IUCN Red List as a threatened, but many species have small distributions and at least three, H. flammeus, [5] H. coelestinus and H. duragenys are classified as endangered. [7]
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The tetra is a tropical, silver metallic-colored fish, with red-tipped fins and a black marking on the dorsal fin. The tetra is a hardy community fish for beginners, and is optimal for the beginning fish hobbyist. [4] It is also relatively large for a tetra, growing up to 7.5 cm (3 inches). [4] They can live up to 5 or 6 years.
“The emperor penguin is the largest penguin species on Earth.” The emperor penguin is the largest species of penguin in the world and also one of the most unique. Instead of breeding in the ...