1The world of fish is large and very interesting.2 There is children's riddle: Their home is water. They live and breathe under water. What are they? The answer is: They are fish.3 The fish appeared on Earth about 500 million years ago.4 Fish live in rivers, ponds, lakes, seas and oceans. They live in fresh water and in salty water.5 There are thousands and thousands of different types of fish, small and large in size, in form and in colour.6 People eat some kinds of them but there is a special group of fish called decorative fish. 7 People don't eat decorative fish but keep these fish at home as their most favourite pets.8 Decorative fish live in aquariums of different forms and sizes.9 The most popular aquarium pets: are the guppy, the gold fish, the blue neon, the veiltail fish.10 They help people to relax after hard working day.(in the pics you can see a gold fish, a school (-стайку) of guppy fish and a veiltail fish)