Paracheirodon simulans (Green neon tetra) Ultimate Guide

Paracheirodon simulans

Paracheirodon simulans (Green neon tetra) Facts

Other Names:Green neon tetra, Blue neon, Paracheirodon simulans (Hyphessobrycon simulans), (Cheirodon simulans)
Origin:South America
Community aquarium:Yes
Water:soft to medium hard, pH approx. 5.5 – 6.5
Temperature:24-32 ° Celsius
Pool size:at least 60 cm
Planting important:no, but highly recommended
Feeding:As a typical omnivore and predatory fish, the Green neon tetra needs not only the usual fish food for omnivorous aquarium fish but also animal complementary foods such as frozen food , freeze-dried FD food or fine live food.
Breeding possible:No
Shrimp compatible:Yes. The green neon tetra is a very peaceful little tetra and can be kept together with dwarf shrimp , even if it may like to eat young shrimp. Optimal are well proliferating species such as Neocaridina davidi , Neocaridina palmata or Sulawesi Inlandsgarnele for socialization.
Size:up to 3 cm

Paracheirodon simulans (Green neon tetra): Generalization

The Green neon tetra with the Latin name Paracheirodon simulans is a beautiful freshwater fish from South America. It is widespread in the upper Rio Negro in particular.

The fish has a distinctive blue stripe in the middle of its body flanks. Further identifying features would be, for example, the reddish color in the head and stomach area and the transparent fins.

Paracheirodon simulans (Green neon tetra): Features, Shape and Color

The females grow a little larger and are a little stronger than the males, but the sexes in blue neon are relatively difficult to tell apart. Since Paracheirodon simulans is a schooling fish , it should be kept in groups of 10 or more. If the conditions are good, these ornamental fish can live up to 5 years in the aquarium.

The Paracheirodon simulans blue neon has an adipose fin.

The body shape is stretched longer than the neon fish or the red neon.

It differs from red neon in that it has a significantly lower proportion of red, as well as the fact that the red and white zones of the lower abdominal region are less sharply delineated.

The back area has an olive green color. A fuzzy, broad longitudinal ligament extends from the caudal fin to the gill cover.

It gradually narrows between the anal fin and the tail root. A dark zigzag line can be seen at the base of the anal fin.

There is a small black spot at the base of each lobe of the caudal fin. The irises of the eyes are golden-green in color.

Paracheirodon Simulans (Green Neon Tetra) Care and Guide

Paracheirodon simulans (Green neon tetra): In the Aquarium

The fish can grow to a maximum size of approx. 3 cm in the aquarium. A basin with an edge length of at least 60 cm is therefore completely sufficient. It is only important that the active neons have enough space. Said container should ideally be equipped with a sandy substrate and various hiding places and shelters for the animals. In particular, caves, tubes, aquarium plants, roots and stone or rock structures are gladly accepted by the Paracheirodon simulans as resting and resting places. 

Observations have shown Paracheirodon simulans are peaceful and social contemporaries. They can easily be kept in a group or in a swarm. It is also possible to socialize with other ornamental fish or shrimp of the same size.

Paracheirodon simulans do not make any special demands on the prevailing water parameters in the Aquarium. They can be kept in densely planted aquariums, which should still offer plenty of swimming space. Paracheirodon simulans doesn’t like a lot of light, so floating plants are a good addition. The water should be soft to at most medium hard, the temperature of the water should be around 25-28 ° C with a pH value between 5.5 and 6.5.

  • The Paracheirodon simulans feels comfortable in darkened pools of medium size (from 60 cm length) with lots of vegetation and plenty of space for swimming.
  • You should keep a small school of around 20 fish together.
  • It lives mainly in the middle water layers.
  • The Green neon tetra, a typical inhabitant of black water streams, needs soft and slightly acidic water. It is said to be very sensitive to increased nitrate levels, which is why the aquarium water must be partially changed at regular intervals.
  • It should be fed small live or frozen food with intervals of fine flaky dry food.
  • The Green neon tetra should be socialized with small, peaceful fish species such as the dwarf ornamental tetra or small armored catfish (genus Corydoras).
  • Under optimal conditions, the Paracheirodon simulans can live up to 5 years.
Paracheirodon simulans

Paracheirodon simulans (Green neon tetra): Breeding in the Aquarium

The breeding of the green neon tetra in the aquarium is considered difficult, it does not often succeed. It is considered to be an unproductive tetra that spawns in shoals.

If you are going to try and breed the green neon tetra, you’ll have to remember the following:

  • The first requirement for this tetra is probably a darkened spawning basin with plenty of fine-feathered aquatic plants such as Java moss and soft, slightly acidic water.
  • The fish larvae hatch after about 24 hours, after about 5 to 6 more days they swim free. The fish larvae have to be raised separately because they would be eaten by the adults.
  • Then you have to supply them immediately with the finest dust or pond food. The juvenile fish can be supplied with Artemia nauplii.
  • Very soft, slightly acidified water (pH value of approx. 5)
  • A water temperature of approx. 25 ° C.
Green neon, Paracheirodon simulans-Species Spotlight

Paracheirodon simulans (Green neon tetra): Recommendation and Tip

Plant recommendation

When setting up the Aquarium, you should use plants that are free from snails, planarians and other unwanted inhabitants. Make sure that the plants are also free from algae spores, bacteria and fungi.

Water binder tip

Use a water binder that binds heavy metals like copper, lead, silver and other as well as medicine residues and organic nitrogen connections (ammonium, ammonia and nitrite) and removes it completely from the aquarium water.

This will ensure that the Paracheirodon simulans always have crystal clear and healthy water. It also ensures optimal conditions for successful breeding and keeping.

Paracheirodon simulans (Green neon tetra): vs Paracheirodon innesi (Neon Tetra) vs Paracheirodon axelrodi (Red Neon Tetra)

 Paracheirodon simulansParacheirodon axelrodiParacheirodon innesi
Size:up to 3.5 cmup to 5 cmup to 4 cm
Age:up to 5 yearsup to 10 yearsup to 8 years
Gender difference:W fullerW fullerM slim, round indented throat
Feeding:Live and dry foodLive and dry foodLive and dry food
Aquarium:from 80 cm (112l)from 80 cm (112l)from 80 cm (112l)
Pelvic area:centercentercenter
Social behavior:real schooling fishreal schooling fishreal schooling fish
pH value:to 7up to 6.5to 7
Temperature:23 ° C to 32 ° C24 ° C to 30 ° C20 ° C to 28 ° C
Total water hardness:until 10until 5until 10
Carbonate hardness:to 4up to 2to 4

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