Crabs - aggressive animals, they often fight with each other in pursuit of the weaker cousins. They attacked other animals: water beetles and their larvae, the larvae of dragonflies, newts, frogs. Large crabs can be quite noticeable pinch of thumb, if you handle it without the proper "deference and caution.

To avoid fights, I had their crab alone. If for some reason it was necessary in one aquarium to settle two or three crabs, I put there a lot of plants, driftwood, rocks, so that animals can hide from each other, and abundantly fed various feeds.

What do crabs eat - with the growth of crabs molt, molts depend on the frequency of feeding and other conditions: at least once in 4-5 months. After shedding their body becomes soft and vulnerable, so they are not long out of his hiding place and nothing it does not eat. At this time, it should isolate the animal from its counterparts; otherwise, you will be at least one crab.

Feed the animals on land: in this case and the water is less polluted. As the feed offered bloodworm or other aquatic invertebrates, and make good use of "mixture" of this composition: 1 / 3 lean beef (such as the heart) or freshwater fish, 1 / 3 of the squid and 1 / 3 of shrimp. All parts are scrolled through a meat grinder, "mixture" laid out on a thin layer of cellophane and frozen in the freezer. In the future, the necessary amount of feed breaks off from a common plate and offered to animals. From time to time, give the crabs dry or daphnia grammars. They eat and plant foods: sliced bananas, apples, lettuce, or scalded with boiling water nettles.

If you feed the crabmeat, bits of fish, etc., then you need to carefully monitor the cleanliness of the aquarium. Such feed is better to feed crabs every two to three days to remain as little uneaten food. Still the water from this feed port, because crabs eat very sloppily, leaving small remnants of food that is difficult to see and remove it from the aquarium.

Despite the predatory inclinations of crabs, I once ventured to put one of these five young male guppies. Crab first time ever tried to catch them, but the fish is always quick time to get away from it. Over time, the crab all attempted to grab at least some of the fishes, especially since it has always been plenty of other, more suitable for his food.