![]() ![]() Tetr- ultimately comes from the Greek tttares, meaning four. In chemistry, tetr- is specifically used to indicate the number of atoms or groups of atoms in compounds, e.g., tetroxide. It is used in many scientific and other technical terms. Fine flake food, small granules, live or frozen brine shrimp or daphnia, and frozen or freeze-dried bloodworms are all good food choices. Ichthyologists debate the function of the adipose fin, doubting its role in swimming due to its small size and lack of stiffening rays or spines. Tetr- is a combining form used like a prefix meaning four. Neon tetras are omnivores, meaning that they will eat both plant and animal material. While this adipose fin is generally considered the distinguishing feature, some tetras lack this appendage. This adipose fin represents the fourth unpaired fin on the fish, lending to the name tetra, which is Greek for four. Additionally, tetras possess a long anal fin stretching from a position just posterior of the dorsal fin and ending on the ventral caudal peduncle, and a small, fleshy adipose fin located dorsally between the dorsal and caudal fins. They ordinarily possess a homocercal caudal fin and a tall dorsal fin characterized by a short connection to the fish’s body. Tetra definition: Any of numerous small colorful tropical freshwater fishes chiefly of the family Characidae, such as the neon tetra, often kept in home aquariums. Tetras generally have compressed, fusiform bodies and are typically identifiable by their fins. For example, payara is occasionally known as the "sabretooth tetra" or "vampire tetra". Even vastly different fish may be called tetras. It is short for Tetragonopterus, a genus name formerly applied to many of these fish, which is Greek for "square-finned".īecause of the popularity of tetras in the fishkeeping hobby, many unrelated fish are commonly known as tetras, including species from different families. Tetra is no longer a taxonomic, phylogenetic term. Consequently, they are extremely popular for home aquaria. tetr- (before a vowel) Etymology edit From Ancient Greek - (tetra-), combining form of Ancient Greek (téttares), from (téssares, four). Many of these, such as the neon tetra, are brightly colored and easy to keep in captivity. This name is fairly short and simple to pronounce. The girls name Tetra is made up of 5 attributes and is initially refer to females. Tetra name especially used for Girl Gender. TETRA over LTE means that when their help and cooperation is needed, they can communicate with you in groups - using the Tactilon Agnet app, for example. The Characidae are distinguished from other fish by the presence of a small adipose fin between the dorsal and caudal fins. Tetra is in top trending baby Girl names list. Freebase Rate this definition: 0.0 / 0 votesĪ tetra is one of several species of small freshwater fish from Africa, Central America and South America belonging to the biological family Characidae and to its former subfamilies Alestidae and Lebiasinidae. ![]()
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