Gastromizon (Gastromyzon punctulatus) is a small and calm fish that can be more and more often found in amateur aquariums.
Habitat: inhabits shallow rivers, streams and reservoirs, including mountain ones, with clean cool water saturated with oxygen. It mostly lives in Borneo, but is also found in Vietnam, China and Laos.
Description: Because of the highly flattened shape of the body, gastromizon has been given another name – the guitar fish. Paired fins are very large and semicircular in shape. The rounded head is also flattened, its line gently flows into the pectoral fins, which are adjacent to the ventral, smaller fins.
The body tapers at the tail. On the lower paired fins and abdomen are suckers, allowing the fish to move even against a very strong current.
In some individuals living in nature, the fins are developed so strongly that they allow you to climb up the waterfalls. There are no scales on the belly and head.
The mouth is lower and directed upwards. There are no horn scrapers either, so gastromizone can only eat soft food.
Body color varies from light to dark brown. Coloring may vary depending on the condition of the fish.
Under stress and fright, the color fades, the spots are almost indistinguishable, and during the period of aggression the overall color also brightens, but a dark band appears along the back, as well as along the edge of the fins.
In the normal state, the fins of the gastromizon are folded, and if they are raised together with the tail splayed, this is a manifestation of aggression.
Females are smaller.
Gastromizon (Gastromyzon punctulatus) grows in aquariums up to 6-10 cm.
Arrangement and parameters of the aquarium: best feel group of 2-4 individuals. For such a number of gastromizon will need a capacity of 60 liters.
In an aquarium, it’s not so much the size as the bottom area. With a shortage of space, intraspecific conflicts are possible.
Soil need loose on it fit large flat stones. Gastromizone moves along the bottom in spurts, from one surface to another, trying to avoid the ground.
This is explained by the fact that the fish have very tender and sensitive skin of the abdomen. Basically spends time on the stones, from which incidentally scrapes scrape.
Fishes are also used for movement by plants, therefore only species with strong roots and large leaves, such as Echinodoruses, Anubiases, are suitable.
If you place a primer of different shades in an aquarium, you can observe the ability of the gastromizon to change color in accordance with the surface.
Water must be clean and enriched with oxygen, and therefore the installation of powerful equipment – a filter and a compressor – is necessary. Gastromizon will be happy if a moderate current is created in the aquarium, which is natural for its natural habitats.
The replacement of a third of water is carried out weekly and is combined with the cleaning of the soil.
Water parameters: 22-25 ° С (minimum limit – 18 ° С, maximum – 30 ° С), dH 10-15, pH 6-7.5.
Due to the lack of scales on the abdomen and head, gastromizone is very sensitive to chemical preparations and drugs, therefore, if it is necessary to treat other small fish of healthy gastromysones, it is better to set them aside for a while.
Compatible with peaceful fish of any size, even fry, and for large predators, the gastromizon that is not used to defend itself will be easy prey.
Nutrition: The basis of nutrition should be plant food. Eat unicellular algae, formed on the glass, decorations and plants. They take all kinds of feed, but the most suitable are sinking pills for bottom fish and flakes with a high content of herbal supplements.
For a change you can feed Gastromizon (Gastromyzon punctulatus) frozen small bloodworm, pipe worker, cyclop and artemia. Some individuals will not refuse pieces of cucumber or zucchini.
A weekly fasting day is necessary, systematic overeating is fraught with obesity and death of fish.
Reproduction: unfortunately, cases of gastromysone breeding in captivity have not yet been recorded, and because of the complexity of observation in nature, there is also no data on how this happens.