Most counties, such as the counties of Santa Clara, Los Angeles and San Diego, distribute mosquitofish for free through the local vector-control program. Depending on the county, some vector-control districts even delive... More » Pets & Animals Pets Aquatic Pets

Mosquito fish are available for purchase at various online aquarium shops, such as and, or for free from vector control districts in some states. Mosquito fish require a water source of... More » Pets & Animals Marine Life Fish

For live-bearing fish, the pregnancy length depends on the species of fish and varies considerably. For instance, according to the MCH Portal, platies have a gestation period of up to 7 weeks. On the other hand, mollies ... More » Pets & Animals Pets Aquatic Pets

Swim bladder disorder can cause bettas and other fish to have a problem swimming upright. This may be a sign of a larger issue. More » Pets & Animals Pets Aquatic Pets

Male and female betta fish should not be kept in the same tank. Male betta fish are aggressive and should never be placed with another betta fish. Female betta fish can also be aggressive and may not be able to live in a... More »

The right water temperature in an aquarium depends on the species of fish inside the aquarium. For instance, the water for tropical fish should be between 75 and 80 degrees F, while the water temperature for cold water f... More »

A number of quick, relatively painless methods have been devised to humanely dispatch fish. A commonly used method is clove oil to anesthetize the fish, followed by an alcohol bath to kill the fish. Another option is to ... More »