Where do tropical fish in saltwater aquariums come from?

Article about the common aquarium types as well as reasons for keeping a fish tank in your home.
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Mollies are a versatile fish which can survive in both freshwater and saltwater aquariums, if the changes are made gradually. They are great for beginners because they are extremely hardy, and are not as aggressive as some other tropical fish. There are many too choose from, and the term ‘mollies’ is quite vague, since there are so many variations of size, color and optimal tank conditions.
The 15 most beautiful aquarium fish in the world Infographic ~ Salt water tanks.
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If the fish prefer very different water conditions -- some doing best in and others doing better in -- you will not be able to provide the best environment for all of them. The fish least compatible with your aquarium water chemistry may not grow as large or exhibit their best color. Below is information to help you get started with the enjoyable hobby of aquarium fish.
Photo provided by FlickrGet more helpful hints on choosing aquarium fish on the next page.
Photo provided by FlickrFRESHWATER AQUARIUM FISH: A GUIDE TO KEEPING THEM
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Clownfish were one of the first species of marine aquarium fish to be bred in captivity, which likely has helped protect wild populations from overcollection.Most species of fish for the marine aquarium trade, though, come from the wild. Worldwide, the marine aquarium industry is valued at between $200 million and $300 million, according to a 2003 . About 1.3 million American households have saltwater aquariums that are home to 9.3 million fish, a 2014 survey by the American Pet Products Association found.Walk into any pet or aquarium store, and you’re going to find . That orange-and-white-striped Nemo is practically synonymous with saltwater aquariums, and it’s one of the first fish new hobbyists turn to. It was also one of the first marine aquarium fish to be bred in captivity, back in the 1970s. Today dozens of varieties are available from breeders around the world.It's always a good idea to research a fish before you buy it. You never know if you are going to get accurate information from the person selling the fish to you and using the internet or reading a good freshwater aquarium fish book beforehand is always a good idea. Know what you want to keep and have a plan for stocking your aquarium. Never impulse buy a fish at the pet shop.Freshwater aquarium fish care information and pictures ordered by freshwater fish species. Click on the picture of the freshwater fish species in the list below for detailed profiles along with comments and tips from fellow freshwater hobbyists.Some fishermen use cyanide to stun fish to make them easier to grab. The practice is more common for the food fish trade, but it still occurs at worrying levels in the aquarium trade.