Under natural conditions, the Rosenberg macrobrachium shrimp, or as it is also called the giant freshwater shrimp (Gigant Prawn), lives in the water bodies of Vietnam, India, Malaysia, New Guinea, the Philippines and northern Australia. Shrimps prefer to choose their habitat in quiet backwaters with a large number of different shelters in the form of driftwood and dense thickets of plants.
Macrobrachium Rosenbergii has a very unusual, one might say unique color. Moreover, this color is characteristic only of males, whose body is colored brown or deep blue. On the contrary, females are not distinguished by anything outstanding in color. The head of the shrimp is decorated with long orange whiskers. Charcoal pincers. And of course, like all varieties of giant shrimp, Rosenberg shrimp have a nose (rostrum) that has a rich red color and stands out well against the background of the body. It is covered with small notches along its entire length. Under natural conditions, a giant freshwater shrimp reaches a considerable size - about 25 cm in length, while in aquarium conditions, their size is somewhat smaller.
The Rosenberg Macrobrachium shrimp has a very aggressive disposition. Especially belligerent males, for whom all those who surround them are enemies. There are practically no exceptions for them, not even females. Therefore, if you decide to keep these shrimps, you need to take care of a relatively large aquarium with a volume of at least 100 liters and a large number of shelters and plants. As for the other underwater inhabitants of the aquarium, we will immediately say that it is better to keep them separately from these shrimps.
Giant shrimp have an enviable appetite and eat almost anything that moves and does not move. Their aggressive nature will not stop even if fish surpassing them in size encroach on the life. It is also completely pointless to grow live plants together with shrimps, because the latter will certainly be eaten. If you really want to have something green in your aquarium, then use artificial plants. Shrimps lead a measured way of life imposingly crawling on the ground in search of food. And they do this with periodic raising up of their claws, as if making it clear to competitors that this is their territory and it is best not to meddle here.
Shrimp are most active at dusk. It is desirable to keep macrobrachium shrimp in the aquarium in a ratio of 1 male to 2-3 females. It is highly undesirable to keep 2 males in the aquarium between which, in this case, there will be constant conflicts, and as a result, they all end in the death of one of them.
Water parameters should be as follows: temperature 24-28 ° С, hardness dH 4-20 °, acidity pH 6.0-8.0. Filtration, aeration and weekly replacement of 1/4 of the aquarium water with fresh water is required. It should be said that shrimp very quickly adapt to the conditions of their existence and are able to tolerate changes in water parameters in a wide range.
Shrimp feed on almost any food, to be honest, it's hard to say what they don't eat. So no one should have any problems with feeding them. Reproduction Reproduction of Rosenberg macrobrachium shrimp in general is not a difficult task, except for one moment - it requires brackish water.
Born shrimp can be kept in a shared aquarium with other shrimp species as well as fish. When they reach a size of more than 5 cm, the shrimp must be transplanted into another aquarium, otherwise, from this age, they begin to pose a danger to the surrounding underwater inhabitants. Also, you can not keep young shrimp with their parents, who are not averse to feasting on their children.
The life span of Rosenberg macrobrachium shrimp in aquarium conditions is about 4 years.
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