Today, lots of people like keeping fish as pets. There are some questions and answers about why and how to keep them.
Why do people keep them?
People keep dogs and cats because they enjoy their friendships. Fish cannot be friendly, but they have beautiful shapes (形状) and colors. They are happy to watch when they swim in their tanks(水槽).
What do they need?
The fish need a suitable (合适的) tank and enough water. It is also good for them to have a few water plants in the tank. A few snails (蜗牛) in the tank are good, too. They can keep the water clean.
What about feeding (喂养) them?
There are many kinds of fish food in pet shops. Most are suitable for all kinds of fish. You should feed your fish once a day only. It is important not to give them too much food. Just give them as much as (和……一样多) they can eat in about 15 minutes. This will keep them healthy.