I wanted to post a blog on a few fish diseases not a lot of people know about or how to treat. This is somthing people can reference for help. Tell me what you think. Fish TB (Tuberculosis) This is one of the most dangerous diseases your fish can contract, and possibly you yourself if you are not careful. Fish TB is caused by the bacteria mycobacterium marinum. Which Human TB is caused by the bacteria mycobacterium tuberculosis. Not the difference. If you were to contract it its early stages is nothing more then a skin rash which is treatable. Its hard to really say where the bacteria might come into contact with your fish. But if it does here are a few things you should do. Never put your hands and arms into the aquarium if you have any from of open cut, even if it is scabed over it can still cause you to get infected, wear elbow length gloves when cleaning the tank or performing work on it. Do not start a siphon by mouth. When you are done working on your tank wash off your hands in clean water with soap. Or use alcohol if there are wounds. Some symptoms of the disease your fish might experience are. loss of appetite, fish remains in seclusion and out of site rapid breathing (respiration), eyes appear to be cloudy or "popping out", fish lies on its side near bottom of aquarium, stomach of fish appears to be sunken, whitish blotches on exterior sometimes these are red in more sever cases. Also the biggest sign of fish TB is skeletal deformaties. There are two treatments to Fish TB I know of, but you have to act asap when the symptoms occure or it'll be to late. One is 40grams of streptomycin and isoniazid. Streptomycin can be found in some medicated fish foods which would be better for treatment. The other is Kanacyn (Kanamycin) and Vitamin B-6 for around a month. Also another thing I fount to be interesting in fish. Internal Bleeding also known as Septicemia or Hemorrhagic Septicemia: Which first off it is a bacterial infection. Which it can be treated with Maracyn2 which is just the anitbiotic minocycline. Also for what I understand, Tetracycline & Erythromycin can treat Hemorrhagic Septicemia. Just fallow the regular dosage on the box's. Internal Bleeding is hard to combat with out operation. But there are a few things you can do. Symptoms will often present itself as redness or dark discoloration under the scales any where on the body. It can be concentrated in one area or appear throughout. It may appear more visible around the face. The discoloration is often impossible to detect in dark or red colored fish. A wound that is grey, black or fuzzy or has discoloration around the wound site might be infected and antibiotic treatment should be started. Septicemia sometimes shows up as a secondary infection to Popeye, an infection that leads to the bulging of one or both eyes. On occasion, it may lead to Dropsy. Other symptoms may also present themselves in the form of sluggishness, loss of appetite, clamped fins or color loss. Heres a few of my own suggestions for a more natural route. One, if any of the fish food you are using has garlic as an ingreadient stop using it asap. Garlic is a natural blood thinner which wouldnt help in this case. You want the blood to clot to stop the bleeding. Treatment should be clean heated water and stress coat. I would remove fish from the tank and into a Q-Tank for better treatment. Watch them or it closely, if you see any signs of blood comming out of him treat the water with a low dosage of salt...just low enough to have it in the water and that be it. St. John's Wort has been used on humans to treat internal bleeding. In a low dose it could be ok to use with your fish. But the only issue is it has to be consumed. A calcium rich diet and vitimin C will help control the bleeding so if you can try to get something with calcium in it in fairly high levels. You can use calcium pills for humans but just a micro peice disolved in water every two days will work. But make sure its just a calcium pill with no extra additives. Most cases of this are reported in Great Lake fish....but there are cases in home aquariums. Referenced from my post https://www.fishlore.com/fishforum/freshwater-fish-disease/68591-how-identify-internal-bleeding.html and If you have any other disease you think I should write about let me know please. I'll keep my research up, if I find anything else I'll update every so often.