Amblyeleotris randalli

Amblyeleotris randalli

Maintenance :

Easy

Compatibilité aquarium récifal :

Green

Taille adulte moyenne :

11/ 4.33

Taille minimale de l’aquarium :

50 to 100 litres

Relations intraspécifiques :

Solitary

Relations interspécifiques, ne pas maintenir en présence de :

Another terrier Gobie of another species or genus, except a very spacious aquarium (more than 1,000 liters)

Symbiose :

Gobie alone or in pair, with one (or a pair of) shrimp (s) alpheus commensale (s)

Dimorphisme sexuel :

Yes

Dimorphisme sexuel du mâle :

Genital papilla

Dimorphisme sexuel de la femelle :

Round genital papilla

Zone de vie dans l’aquarium :

Sand

Conseils de nos experts :

General description, behavior:
Amblyleotris are gobies that live in burrows. They have the distinction of being commensals of shrimp-pistoles: they live in combination with a pair- of these shrimp (s), of the genus Alpheus. Each species of Amblyeleotris, according to its distribution area, will have a preference for a particular species of shrimp-pistolet, but most can accumulate different species, if they have no choice (however, attention, because Certain species of shrimp-pistol are not commensal of gobies, and will even be a danger for fish). These shrimp-pistoles are almost blind: the fish offers its shrimp protection, it is held outside the burrow and monitors the surroundings, while the shrimp is busy with its "contract": dig and maintain the terrier. The shrimp does not have to leave her shelter to find her pittance, she takes advantage of the reliefs of the meals of the fish, as well as her excrement. This narrow association, fascinating to observe on a daily basis, lasts all the time in the life of partners, and is easily reproducible in aquarium.

Like all goats, Amblyeleotris are robust and easy to acclimatize. Relatively fierce the early days of arrival in the aquarium, the Gobie easily takes his ease, especially if he had a choice of adequate hiding places, and an Alpheus shrimp available to keep him company. He will be released for long periods of the day in front of his burrow, in the open, watching for possible foods that would pass within his reach. At the time of meals, we quickly see him starting into the current to meet the "prey" and swallow them before returning to a flash at the edge of his burrow.

Morphology:
Amblyeleotris Randalli shares with its gender different morphological characteristics: a tubular body of light color (from white to beige depending on the species), with scales so fine that they are not distinguished with the naked eye; A flattened face with prominent eyes and disproportionate mouth (resembling enough a frog facies), a pair of pelvic fins joined in their base, forming with its body like a "tripod" on which the fish is usually resting; Narrow dorsal and anal fins bordering on the posterior half of the fish, a relatively large caudal fin for the overall size of the fish. Amblyeleotris Randalli has a white body, barred seven fine orange, oblique and well -defined yellow bands. Its first dorsal fin is round and very developed, decorated with a white border and a speckled pattern of the same color. At its base, in the center, it is decorated with a black ocel circled in white of the most beautiful effect.

Distribution, natural habitat:
Amblyeleotris Randalli meets in the Indo Pacific, from Moluccia (Indonesia) to the Solomon Islands and Micronesia, and from the Ryukyu Islands (Japan) to the Grande Barrier de Corail for the North-South limits.
The species is most often found in association with Alpheus Bengalensis, in the sandy areas of the bottom of the external reef, at deep depths for gender, between 25 and 50m.

In the aquarium (compatibility, food, care, etc.):
Of a maximum size of 11 centimeters (generally rather between 7 and 9) Amblyeleotris Randalli is accessible for all aquariums from 50 liters, because it is not a big swimmer, he prefers to observe the surroundings from the entrance of his burrow, and almost never leaves "in a walk". Like all gobbles, it is a peaceful and reef safe fish: no coral, no worm, no shrimp will be threatened, except possibly the very small "nano" shrimp like the periclimenes sp. Or the Thor Amboinensis, because the Amblyeleotris are provided with a very large mouth, capable of rushing relatively large prey, and are provided with a solid appetite.

Gobies of the genus Amblyeleotris are small carnivores planktonophages. They easily acclimatize to lyophilized foods (pellets and sequins) after an adaptation time. We still recommend that they offer them on a daily basis at the beginning and at least a few times a week of thawed foods such as Artemias, Mysis, Krill chopped ... For the choice of dry food, we can opt for a complete, mixed formula: Carnée Base with An algal or spirulina supplement, the latter bringing fatty acids as well as interesting proteins, even if the fish is not "vegetarian" naturally.

In terms of the inter and intraspecific agreement, Amblyeleotris are quite "easy to live", compatible with all the small reef fish of peaceful customs (too stirring or aggressive fish - big fatal labras, pseudochromis, clowns fish in Frai period in a small volume of aquarium ... - could frighten him and prevent him from getting out of his burrow to eat). It is also compatible with all the gobbles that inhabit other parts of the aquarium, such as the Amblygobius, the Trimma, Eviota and Elacatinus, Gobiodon. We do not recommend maintenance in the company of other Amblyeleotris, and other Terrier gobies, such as the Cryptocentrus, Valenciennea, Stonogobiops, Vanderhi (excluding very large volume, where several territories could be distributed - count minimum 1 m² on the ground by fish) : quarrels would be vigorous, often leading to the death of the weakest. In nature, there are however some burrows where several Amblyeleotris of different species have found refuge, even Amblyotris with Stonogobiops. This unusual behavior is probably the consequence of a hostile environment where many predators marauded. In captivity, everyday tranquility would almost inevitably lead to war.

The Gobie Terrier and Shrimp Association Alpheus is a great classic of the small and medium volume aquarophilia, an essential for those who like to observe long moments during fish with various behaviors. If we have taken care to arrange "holes" available in the base of its rocky decor, at the front of the aquarium, in front of an open and well brewed sandy beach, we will undoubtedly find the Gobie installed from The day after his arrival, well in sight, because as he likes to watch out for the prey that goes into the current, he will almost systematically choose a discovery zone. A layer of sand of at least 2 to 3 cm is essential for making the burrow, do not buy this type of fish if you want to keep the tank in "Bare Bottom".

You can wish to get a pair of these gobbles so that they form a "couple" in the aquarium. The long -term stable pairs are rare among the Amblyeleotris, most of the time, couples appear during periods of reproduction, living a few weeks in the same burrow, before separating "each at home" once the eggs completed.
Conversely, the pistol shrimp are usually in monogamous pair all their lives. Most of the time, we find, in the natural environment, a typical diagram of occupation of the burrow: a gobie / two shrimp.
In Amblyeleotris, the signs of sexual dimorphism are not very apparent or even impossible to detect by most aquarophiles who will not risk manipulating the fish, since it is a question of identifying the difference in the genital papilla: Round in the female, sharp in the male ... It is obviously problematic when you want to try to appear two individuals. If in doubt, it is better to take only one, unless the pair is sold together.

The life expectancy in an aquarium of an Amblyeleotris is approximately 5 years, and 5 to 7 years for the Alpheus shrimp.

Paramètre physico chimique de l’eau :

Temperature 24-27 ° C, salinity 1.022-1.024, pH 8.0-8.4, KH 6-10, mg 1200-1400, CA 400-480, No3> 10, PO4> 0.05

Régime alimentaire :

Carnivorous

Origine géographique :

Indian Ocean
Pacific Ocean