Fauna #12 : Neon Tetra
Common Name: Neon Tetra
Scientific Name: Paracheirodon innesi
Local Name: Neon Tetra, rainbow fish
Origin: southeastern Colombia, eastern Peru, and western Brazil
Life Span:
Temperament: Peaceful, Docile
Tank Compatibility Issue (for both Flora and Fauna): Peaceful fishes, several aquatic plants
Freshwater/Brackish/Marine: Freshwater
Water pH: 5.0 – 7.0
Water Hardness: soft,acidic water
Schooling/Non-schooling: Schooling
Common Illness/Problems:Ich, Fungi ,Bullying, Predation, Stress and polluted tank.
Unfortunately, neon tetras are occasionally afflicted by the so-called "Neon Tetra Disease" (NTD) or Pleistophora, a sporozoan disease caused by Pleistophora hyphessobryconis. Despite being a well-known condition, it is currently incurable and often fatal to the fish.
The disease cycle begins when microsporidian parasite spores enter the fish after it consumes infected material such as the bodies of a dead fish, or live food such as tubifex, which may serve as intermediate hosts. The disease is most likely to be passed on from newly acquired fish, which have not been quarantined.There is also a disease known as “false Neon Tetra disease” that is often confused with true Neon Tetra disease. This disease is not caused by a sporozoan; it is caused by bacteria. The symptoms are however very similar and unless you have access to a laboratory it will be virtually impossible for you to tell the difference between the two diseases.
Growth: fast, depends on diet
Length/Size:3 cm (1.25 in)
Difficulty: Easy to Medium
Water Current/Movement Issues:Given the origins of the neon tetra, namely blackwater rivers whose chemistry is characterised by an acidic pH, low mineral content and the presence of humic acids, the species is adaptable to a wide range of conditions in captivity, though deviation from the soft, acidic water chemistry of their native range will impact severely upon breeding and fecundity.
Description: Just like the other tetra species, the Neon tetra has a spindle shaped body and a blunt nose. A glistering blue line runs along each side of the body, from the nose and all the way to the adipose fin. The Neon tetra is also decorated with a red stripe that runs from the middle of the body to the base of the caudal fin. The side over the blue stripe is of a dark olive green shade. The belly is of a silvery colour and the anal fin is nearly transparent.
During the night, when the fish is resting in a sheltered place, the sparkling colours will be turned off and the fish will look dim. If you quickly turn on the lights in the aquarium after a longer period of complete darkness, you might not notice your Neon Tetras at first. If the colouration continues to be dull even after some time in the light, your tetras might be ill or stressed. You might also be keeping them on an inadequate diet.
The Neon Tetra is often mixed up with the Cardinal Tetra, since they both feature striking red and blue stripes. The Cardinal Tetra is even sometimes referred to as “Red Neon Tetra” in everyday language, even though it is in fact a separate species and not a colour variation of the Neon Tetra. Distinguishing these two species from each other is however not difficult at all if you know what to look for. Under the sparkling blue stripe, you will see a red lateral stripe in both species. If this red strip ends roughly halfway from the nose of the fish, you are looking at a Neon Tetra. If the striping instead continuous much longer, you are looking at a Cardinal Tetra. The name Cardinal Tetra is derived from the long, red robes worn by cardinals and these robes do not end half-way.
Other Important Information:
The male is slender, and the blue line is straighter. The female is rounder, producing a bent blue line. Some say that the females look plumper when viewed from above but this is disputed. However, the 'straightness' of the line and the plumpness of the female might occasionally be due to the eggs she is carrying.
To breed Neon Tetras, place a pair of the species in a breeding tank without any light, and gradually increase the lighting until spawning occurs. Other inducers include mosquito larvae and a hardness of less than 4 degrees. Some also recommend letting the level of nitrates rise, then do at least 50% water change to simulate the fresh rain the tetras get in their natural habitat, the Amazon. It is recommended that everything you place in the aquarium be sterilized, as well as the aquarium top. Because the adults will often eat newly-hatched fry, it is best to remove them as soon as the eggs have been laid. The eggs are especially sensitive to light. Eggs will hatch within 24 hours of the laying. Fry can be fed rotifers, especially infusoria and egg yolk for 1 to 4 weeks, followed by nauplii of brine shrimp, shaved cattle liver, and formulated diets. Fry will achieve their adult coloration at approximately one month of age. Adults can spawn every two weeks.Neon tetras are omnivores and will accept most flake foods, but should also have some small foods such as brine shrimp, daphnia, freeze-dried bloodworms, tubifex, which can be stuck to the side of your aquarium, and micro pellet food to supplement their diet. A tropical sinking pellet is ideal as most brands of these include natural color enhancers that really bring out the color in neon tetras.Captive bred Neon Tetras are often adapted to conditions that differ a lot from those found in the original Neon Tetra habitat. Wild Neon Tetras inhabit very soft and slightly acidic waters in tropical regions of South America where the water temperature usually stays between 20 and 26° C (68 and 80° F). Rainforest rivers and streams are frequently replenished by soft downpour and frequent water changes are therefore recommended in the aquarium.
References :
Neon tetra - Wikipedia, the free encyclopedia
Neon tetra image by pctt38 on Photobucket
Neon Tetra
neon tetra - Hanapin sa Google