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Tropical fish

life science Maturity 5-7 Next article →

Tropical fish live in warm water environments around the world.

Orange-lined Triggerfish3
Orange-lined Triggerfish3

People often keep these fish in heated tanks called aquariums. The name "tropical fish" is not a scientific group. Instead, it is a general term for fish from these warm areas. Many people enjoy them because of their bright colors. These colors come from pigmented cells and iridescent cells. Iridescent cells are those that shine or shimmer.

Orange-lined Triggerfish3
Orange-lined Triggerfish3

Keeping these fish involves different ways of working with water. Freshwater fish are very common in aquariums. Most people use tap water to make a freshwater home. Saltwater fish are harder to keep in tanks. You must add sea salt to fresh water to make it right. You must also monitor the salt levels closely. This is because water can evaporate over time. When water evaporates, the salt levels can change.

Orange-lined Triggerfish3
Orange-lined Triggerfish3

Many fish come from farms rather than the wild. Most tropical fish sold today are freshwater species. Large fish farms in Asia and Florida produce many of them. These warm places make it easy to grow fish for sale. This mass production makes many fish quite inexpensive. Some special fish are still caught in the wild. These fish are often more expensive to buy. Arowanas and flowerhorn cichlids are some very expensive freshwater fish.

Orange-lined Triggerfish3
Orange-lined Triggerfish3

Marine fish often come from coral reefs around the world. Most of these fish are sourced from the wild. This is because few marine species breed well in captivity. Marine fish have very vivid colors and patterns. They can be harder to keep alive than freshwater fish. However, new filtration technology is helping people keep them. More people are now learning how to care for them. This is helping the popularity of marine fish grow.

Orange-lined Triggerfish3
Orange-lined Triggerfish3

Coral reefs are amazing places in the ocean. They cover less than 1% of the ocean surface. Yet, they provide a home for 25% of all marine fish. These reefs are very different from the open ocean. Hundreds of species live in small areas of a healthy reef. Many fish use camouflage to hide in the coral. Sadly, pollution and overfishing now threaten these habitats. Protecting these reefs helps the fish that live there.

Orange-lined Triggerfish3
Orange-lined Triggerfish3
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