This post is written for the “Save the Ocean” group-writing project.

Most people keep marine aquarium at home because of their love for and fascination with these beautiful fish and their reef. But what many people do not realize is that their hobby also affects coral reefs.

Image credit: Untitled No.4.

In fact, more than 1,400 species of ornamental fish are traded worldwide, which accounts for more than 20 million fish each year. And many tropical fish are captured through the use of cyanide, which is sprayed into coral caves and crevices to stun the fish. As a result, half or more fish can die within hours of collection.

With the use of cyanide, fish that are not targeted for sale are also killed, along with many corals. With the high price, too many tropical fish are being removed from their home waters.

So if you plan to create an eco-friendly marine aquarium at home, here are some guidelines:

• Consider owning a freshwater aquarium because it is easier to set up and maintain, and more than 90% of freshwater fish that are being sold in markets are captive-raised.
• If you own a marine aquarium, purchase only tropical fish that are captive-raised. Aquacultured species that are available include clownfish, cardinal fish, batfish, seahorses and some snails.
• Contact experienced aquarists to learn how to captive breed and trade your marine plants and animals.
• Patronize aquarium shops that are environmentally aware, and do not buy from those who catch their fish from the wild.
• Never trash anything from your marine tank into the drain, lake, river, bay or pond because you COULD be introducing harmful non-native species.

Recommended reads:

• Reef Protection International — Educates consumers on how to maintain an assure environmentally friendly home aquaria.
• Marine Aquarium Council — Creates standards and certifications for those engaged in the collection and care of ornamental marine life.
• Washington DC Area Marine Aquarist Society — An example of a hobbyist group dedicated to the husbandry of marine life in a captive environment in order to reduce the demand for wild-caught specimens.

January 2008 is “Save the Ocean” month here at The Giving Hands. Click here for more information on how you too, can save our oceans, and remember to subscribe to The Giving Hands for your daily updates!