Tumors in tropical fish
Tropical
fish are much like other species in many respects, this includes the fact that they may have or acquire diseases or disorders that may resemble those of any other animal, but are specific to the
fish themselves. One good example is a
cancerous tumor. Just as humans, cats or dogs may get
cancer or other types of
tumors,
tropical fish can as well.
The main difference is that treatment in
tropical fish is nearly impossible; this can often depend greatly on the type and location of the mass. Not only are they difficult to handle so that a human can have clear visual access to them, but some cures such as surgery are basically out of the question. Tumors will generally show themselves as a lump under or on the skin of a
fish.
These are a distinct bump or lump, as opposed to the white fluff of skin diseases. For the most part,
tumors are benign, although it's very possible for one to grow to a size which makes the
fish's quality of life decline and you may have to euthanize it. One type of tumor that does have some success with treatment is the kind that forms under the skin of the gill, causing it to remain open. The cause of this can normally be attributed to a thyroid malfunction
.
An article we read suggested this as a possible treatment. Remove the
fish to a small solitary tank, and add 1 milligram of potassium iodine for every gallon of water. Improvement can be slow, and the full course of treatment can take up to one month. Internal
tumors can be very advanced before the
fish shows any signs, such as a swelling of the abdomen. These cases are inevitably fatal, with the rapid growth causing the
fish to lose its ability to swim and or eat, at which time you should consider euthanasia.
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