In areas that have waters, such as rivers, swamps, moats and lakes, there are still many fish that can be utilized as a source of protein. One of them is cork fish which has been widely known by the people of Indonesia. These fish easily live in waters that have not been contaminated by pesticides. In nature cork fish are predatory fish, small fish predators, insects, child frogs, snails, worms and other types of aquatic animals.
Fish cork is also a nice fishing fish. With live bait of insects or frogs, cork is relatively easy to fish. But his sharp teeth and strong tugs and tugs, can easily break the fishing line. For villagers who are particularly farmers, corks are very helpful in destroying pests, for example: many paddies are inhabited by snail pests, often culminating in crop failures, as a result of the snails that often eat rice, especially at a young age.
However, these fish can also be very detrimental, ie when it goes to fish-keeping ponds. Cork is very greedy prey on small fish, so it can spend the fish that are kept in the pond, especially if the pet fish is still small.