The top three disease that occur most commonly in the Oscar fish are easily recognizable. The top three diseases are hole in the head, ich, and fin/tail rot. These diseases are mostly found in tanks with overcrowding and low quality of tank water. Luckily there are fish medicines that can aid these sicknesses. You can find a guide for these medications on the Oscar fish website.
The exact cause of this disease is still unknown. There is a flagellate parasite that is commonly found in every case known as Hexamita. Other elements that contribute to this disease are vitamin and mineral deficiencies, overcrowd, malnutrition, and low quality of tank water. The symptoms of this disease include round white colored sores on the head and around the eyes of the fish, pitting in the head and on the spine, sores, mucous discharge from the sores, and loss of appetite. This disease can kill your fish if it remains untreated. A drug with the name of Flagyl is know to treat this sickness. It is mainly composed of metronidazole. All you need to do is add this to the tank water and let your fish bath in it for around twenty four hours. In conjunction with this medicine you can add formalin and malachite. It is added to the pre existing bath. Another option is to give the metronidazole in the form of fish food. This option can only be used if your fish still has an appetite. This form of medicine needs to be administered for five to ten days.
This disease is common among many different types of aquarium fish. It is caused by a protozoan parasite. This parasite can reproduce at an alarming rate which contributes to its sudden onset. The parasite spreads quicker in warmer water. This parasite can be introduced to an environment by adding a new fish or live food/plants. Be careful! The symptoms which show Ich are staying close to the tank’s bottom, white colored spots on the skin near the gills, fins turning a more red color, failure to eat, rubbing their bodies against the tank, and rapid movements of the gills. Ich can kill your fish is left untreated. There are many different medications available to rest Ich. They include baths of sea salt, formalin, malachite/vistoria green, copper sulfate and acriflayin. Increasing the water temperature has also show to help treat the fish - this speeds up the Iches life span and kills them quicker. Keep in mind some of these medications are toxic and can kill your live plants and invertebrates. If your fishes ich case becomes severe enough then antibiotics must be used. Seek out your local veterinarian for assistance.
This disease is a bacterial infection. The strain is non specific and has shown to be associated with many different bacterias. For example; Flexibacter, Cytophaga, and Flayobacterium has all been culprits of the disease. This disease most commonly comes about in stressed fish that are in low quality environments. Overcrowding, low water quality, and poor oxygen levels are all associated with the rot. The rot can also occur in tissue around wounds on the fish.
The symptoms of this disease are blackened, bloody or ripped fins, some pieces of the fin will just fall of, lethargic behavior,staying near the surface, slimy appearance of the fish, and failure to eat. The rot can be treated and most of the time antibiotics must be used. Surgical removal of the tissue is even used in extreme cases. In minor cases the fins do grow back. There are few over the counter treatments for minor cases. These are used in a tank bath setting along with salt added to the newly treated water. You can add oxytetracycline, chloramphenicol, and tetracycline to your fishes water to attempt to clear up the water. Lastly, remember to un crowd and de stress your fish. It is important to allow them plenty of room in the tank along with many available hiding spaces.