A List Of Common Fish Diseases And Their Symptoms

By myarn • December 15, 2009

1. Bacterial Diseases in Fish

Bacteria are a very common explanation for complaint for fish breeders. There are a number of bacterial diseases in fish caused due to pathogenic bacteria. These bacteria will either attack the fish externally, or can enter into the body of the fish through the skin and will injury internal organs, even leading to death. Fin rot and bacterial gill disease are the foremost common bacterial attacks in fishes, in that the fins and therefore the gills are infected respectively. If the bacteria have managed to gain entry into the body, it’s called systemic infection. Bacteria can also cause ulcers and lesions on the body of the fish. Bacterial infections are simply apparent externally as ulcerous marks or red irritations on the skin of the fish. Bacterial infections are terribly common in koi fish.

2. Fish Lice

Fish lice are scientifically termed as argulus, and being concerning a centimeter in size, they’re among the most important parasites found in the animal world. They’re terribly detrimental to the health of the fish, as a result of they will suck out the fluids from the body of the fluids by clamping their proboscis like mouth into the bodies of the fish.

Lice are easily to spot on the bodies of the fish as a result of they’re clearly visible. However, it is necessary to carry a careful inspection of the body of the fish, particularly within the hidden areas behind the fins. Lice might seem as dark spots when they aren’t moving. If there are too many lice, the fish will be quite agitated and will move their body a lot.

3. Flukes in Fish

Flukes are parasites in fish that are harmless in little numbers, but will be fatal to the fish in massive numbers. Flukes are little, regarding a pair of mm in length, and are almost invisible to the naked human eye. But these flukes have hooks through which they clamp to the bodies of the fish. Flukes will suck out the body fluids from the fish and even cause their death. The significant threat from flukes is that one fluke needs solely one fish to complete its lifecycle, and so there’s more reason why the fluke can stay clamped to the fish. Flukes have been thought of to be the most troublesome of the fish parasites to treat, though treatments with malachite and formalin usually show positive leads to stronger doses.

4. Ich

Commonly called ich, ichthyobodo or costia could be a terribly common parasite that’s found on the bodies of fish. Many fish will live with this parasite showing no signs at all. In fact, in little numbers, ich is harmless. The defenses of the fish will keep the quantity of ich below control. However when fish suffer from another disease, the defenses are broken and then ich begins to multiply. Ich will multiply at a very fast rate. In no time, the fish can show a giant quantity of ich on its body, its respiratory will become labored and shortly, it will retreat and isolate itself from the other fish. When this stage arrives, ich often proves fatal to the fish.

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