Silvertip tetra

Aquarium fish: Silvertip tetra (Hasemania nana)
Size: 5 cm
Origin: South America
Water temperature: 23-28 ° C
Aquarium volume: 54 l

Silvertip tetra (Hasemania nana ) – a species of small, freshwater aquarium fish from the tetras family.


The species is native to South America. It is found in eastern Brazil in the São Francisco River Basin, usually inhabiting streams and tributaries, away from the main river channels.

Characteristics and disposition

They reach a length of 5 cm. The body is golden brown, dark copper to silvery.

Transparent, yellowish fins with white edges. A black stripe runs through the middle of the tail and crosses over the body. Fish are distinguished from other species by the lack of a fatty fin. The male is more slender, copper-colored with a darker back. The female is light silvery or silver-yellow in color.

The color of the male during the spawning period is even more emphasized. It is a shoal fish. It is recommended to keep a minimum of 6 individuals in a group, preferably 10 or more. They can nibble at other fish’s fins in lesser amounts. In a larger group, they are less stressed, more colored and show more natural behavior.

Nutrition and feeding

They are eager to eat most of the food they serve, but if regularly fed with live or frozen food (e.g. daphnia, artemia, bloodworm), they will be in the best condition.


Silvertip tetra plates easily adapt to various conditions , they will feel good in a spacious (min. 54 l), richly decorated and partially densely overgrown tank, even though their natural environment is not like that. If we want to reproduce their natural biotope, we pour sand on the bottom, put a few dry, twisted roots and add dried leaves, e.g.

oak. In such conditions and in not too bright light, they show their best coloration. Lively, colorful and quite peaceful fish. Kept in an aquarium that is too small or in small numbers, they may show aggression towards themselves or other similar species (fin-nicking) . In a suitably large and well-arranged tank, they will be a good company for larger tetras, such as the Red-Mouth Sword, Axelrod’s Swinger, or the Tail-Ring Sword.

They can also be combined with beautiful fish (Platki), cuirass, armored fish, and gourami. They should not be kept with much larger fish, such as eg Scalar .


Breeding of this species is easy . However, you will need a separate tank measuring approximately 45x30x30 cm, which should be shaded. In order for the fish to have a place to lay their eggs in the tank, we place large clumps of small-leaved plants, e.g.

java moss or possibly an artificial aquarium mop. The bottom of the tank can also be lined with a mesh with fine meshes so that only the roe passes through them and adult fish cannot get to it. Fish can be bred in a larger group with a sex ratio of 50:50. Regular, abundant feeding with live and frozen food stimulates the fish to spawn and we will not have to wait too long for the fry. A better effect and a larger number of fry can be obtained by breeding Miedziki in pairs.

We separate the females from the males and feed them abundantly. We keep the fish in water at a temperature of about 23-24 ° C. When the females are clearly thicker and the males have acquired more intense colors, we choose the most beautiful male and the thickest female and transfer to the breeding aquarium in the evening. The water in it should have a slightly higher temperature, ie 27-28 ° C and acidic. Spawning usually takes place on the second day in the morning.

As soon as the fish have settled, the adults should be separated from the eggs. Hatching occurs within 24-36 hours. The fry begin to swim freely after another 3-4 days. During the first few days, it should be fed with micro foods until it is large enough to consume artemia or micro nematodes. Roe and fry in the early period are very light-sensitive.


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