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

Cobra guppies are exotic, brightly colored fish also known as fancy guppies. They have a unique pattern on their lower bodies and are available in blue, green, black, orange and yellow. More »

Mystery snails may be kept in the same tank as other fish, according to PetSmart. However, larger species such as gouramis and skunk loaches may eat or disturb smaller snails. Shy and peaceful fish are the most compatibl... 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 »

Oscar fish tend to get along well with bottom-dwelling fish, such as catfish and jurupari. Oscars like to swim in the middle of fish tanks towards the surface. With the bottom fish out of the way, the oscars tend to keep... More » Pets & Animals Pets Aquatic Pets