Here is the best article I could find... if you read pretty far down they say they are very susceptible to flukes and secondary bacterial infections.
https://www.petcha.com/home-aquarium-sharks-and-rays/
Here is an excerpt that might be helpful:
"The most effective way to treat specimens with parasite problems is with dylox or by giving your shark or ray a formalin bath (1 milliliter of formalin per each gallon of water for one hour). Be sure to aerate the container while giving the bath. In less severe copepod infections, the parasites can be carefully picked off with tweezers or, even better, a cleaner wrasse can be employed as a biological control of crustacean parasites.
If you were treating a bony fish for a parasitic infection, you would probably use a copper-based medication, but copper can interfere with the feeding behavior of some sharks, “jamming” their keen electrical sense. The minute pores visible on the underside of the snout and around the mouth are openings to the small organs responsible for sensing electric fields. These electroreceptors are extremely sensitive to voltage gradients. With this sensory capability, a hunting shark can detect the weak electric field produced by a respiring flounder at a distance of several feet. A metallic ion, like copper, will jam these electrosensors. However, not all sharks are sensitive to copper. For example, wobbegongs, nurse sharks and epaulette sharks can be kept in water treated with copper with no apparent ill effects.
Probably the most common shark pathogens are viral and bacterial in nature. One of these bacterial infections, known as Vibrio, is initially visible as small, white lesions on the skin. These erupt into open sores, and, if prompt treatment is not administered, death is quick to follow. This infection has been effectively treated with chloramphenicol or tetracycline (Gruber and Keyes 1981). Sharks can also succumb to fin and tail rot, a bacterial infection also common in bony fishes. This is usually the result of a bad aquarium environment or improper handling and can be treated with nitrofurazone (Gruber and Keyes 1981)."
https://www.petcha.com/home-aquarium-sharks-and-rays/
Here is an excerpt that might be helpful:
"The most effective way to treat specimens with parasite problems is with dylox or by giving your shark or ray a formalin bath (1 milliliter of formalin per each gallon of water for one hour). Be sure to aerate the container while giving the bath. In less severe copepod infections, the parasites can be carefully picked off with tweezers or, even better, a cleaner wrasse can be employed as a biological control of crustacean parasites.
If you were treating a bony fish for a parasitic infection, you would probably use a copper-based medication, but copper can interfere with the feeding behavior of some sharks, “jamming” their keen electrical sense. The minute pores visible on the underside of the snout and around the mouth are openings to the small organs responsible for sensing electric fields. These electroreceptors are extremely sensitive to voltage gradients. With this sensory capability, a hunting shark can detect the weak electric field produced by a respiring flounder at a distance of several feet. A metallic ion, like copper, will jam these electrosensors. However, not all sharks are sensitive to copper. For example, wobbegongs, nurse sharks and epaulette sharks can be kept in water treated with copper with no apparent ill effects.
Probably the most common shark pathogens are viral and bacterial in nature. One of these bacterial infections, known as Vibrio, is initially visible as small, white lesions on the skin. These erupt into open sores, and, if prompt treatment is not administered, death is quick to follow. This infection has been effectively treated with chloramphenicol or tetracycline (Gruber and Keyes 1981). Sharks can also succumb to fin and tail rot, a bacterial infection also common in bony fishes. This is usually the result of a bad aquarium environment or improper handling and can be treated with nitrofurazone (Gruber and Keyes 1981)."
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not what I ever wanted
