![]() As a general rule, you should be keeping shoals of no fewer than 10 tetras, though this does vary between species. ![]() Tetras require little room individually, but the necessity of keeping them in large groups will require a relatively larger aquarium. Housing Tetras and Aquarium Fish Tank Set-up Tips For the majority of tetra species, great tank mates include Swordtails, Corydoras catfish, Guppies, Rasboras and Danios. The recommended shoal size depends on the species, but as a rule, no fewer than 10 tetras should be housed together, with more always being better. Tetras are a schooling fish and should absolutely not be kept individually. That said, most popular tetra species such as the Green Neon, Golden Neon, Cardinal Tetra or classic Neon Tetra, Cardinal Tetras, and Fire-ember tetras are wonderful community tank additions. As always, be sure to consult the individual species’ needs and behaviour before introducing them to your community tank. Black widow tetras are known for fin-nipping more extravagantly-finned species such as Angelfish and should not be housed with any species that is susceptible to being bullied. For example, the rare Bucktooth Tetra is an extremely aggressive fish that can dominate even cichlids, despite its less imposing size. The vast majority of tetra species are peaceful and confident fish, though there are some exceptions to this. As a general rule, tetras enjoy cool active freshwater streams, but they can also be found in ponds, floodplains and tannin-stained lakes. A relatively new discovery has been that of the Blind tetra, found in Mexican cenotes. However, being quite a diverse family, they can also be found in Central America and central-west Africa. Most tetra species are native to southern America, commonly found in the Amazon basin. By far the most popular tetra species (and arguably one of the most popular fish species in the hobby) is the Neon tetra, with other popular species including the Black Neon tetra, Diamond tetra, Rummynose Tetra and the more circular-bodied Golden Black Widow tetra. Other than this, tetras are easy to care for as long as you follow a few simple rules. They are unfortunately quite prone to disease, so be sure to monitor for ammonia and nitrate spikes regularly, keep up with water change schedules and follow the quarantine rules before introducing new fish to your main aquarium. Most tetra species feature elongated bodies with iridescent scales and splashes of bright colours, though you will find a lot of diversity in shape and colour amongst this family.Īlmost universally low maintenance, tetras can handle fairly diverse water parameters. They have relatively long lifespans, somewhere around 6 to 8 years being fairly typical for a healthy tetra. ![]() The rounder body of the female produces a bent blue line.Tetras max out at 7.5 cm (3 inches) for the largest common species, with the majority of tetra species reaching only 3.8 cm (1.5 inches) max. Gender: The male is more slender than the female, which makes the blue line appear straighter. ![]() Unfortunately the eggs and fry will most often be eaten, so a separate breeding tank is best. ![]() With compatible breeding pairs, and given the right conditions, these fish will even spawn in a community tank. Somewhat difficult to breed but can be accomplished using especially soft acidic water along with intense sterilization of the breeding tank and everything used in and on the tank. Feed brine shrimp (either live or frozen) or blood worms as a treat.īreeding & Spawning: Egg layers. To keep a good balance, give them a high quality flake food every day. Diet & Nutrition: Omnivore will generally eat all kinds of small or finely ground foods-live, fresh, and flake. ![]()
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