Hole in the head disease or freshwater head and lateral line erosion (FHLLE) is a common disease that can be both treatable or fatal and it effects freshwater fish, such as oscars, cichlids and discus. The primary cause ... More »

www.reference.com Pets & Animals Pets Veterinary Health

The most common disease to cause a fish to swim sideways is swim bladder disease. This "disease" is a actually a broad term for a variety of symptoms such as swimming sideways, upside down and leaning to one side. More »

New World cichlids are freshwater fish native to the Americas and outlying islands. Most New World cichlids, which belong to the Cichlidae family, are South American natives. Only one species is native to the United Stat... More »

www.reference.com Pets & Animals Pets Aquatic Pets

Blue ram cichlids require 20 gallons of water per fish. The tank needs to be heavily planted with aquatic vegetation and the nitrate levels need to be kept low. The water should be soft and acidic with a pH of 5.0 and a ... More »

www.reference.com Pets & Animals Pets Aquatic Pets

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 »

www.reference.com Pets & Animals Pets Aquatic Pets

According to PetMD, mange in cats manifests itself as small hairless patches on the head, particularly around the eyelids, as well as hair loss on the neck and flank. The bare patches of skin may display scaling, red les... More »

According to WebMD, swelling of the left side of the face or head in cats is a common symptom of an allergic reaction to allergens or snake bites. Abscesses can also cause one side of the face to appear lopsided. Treatme... More »