and it requires consultation with an aquatic veterinarian for system maintenance.Ĭlinical signs of a bacterial infection include edema of the skin ( dropsy), ulceration, decreased appetite, fin erosion, lethargy, secondary fungal or parasitic infections and sudden death.įlavobacterium spp., also known as "cotton wool" disease, is commonly mistaken for a fungus when it is actually a bacteria.Įxcessive medication with over-the-counter "antibiotics" has lead to resistant bacterial strains that require very aggressive treatment. infections, commonly known as fish tuberculosis, which can potentially infect immune-compromised humans. The most common aquatic bacterial infections are caused by Aeromonas, Vibrio, Edwardsiella, Pseudomonasand Flavobacterium spp. Typical causes of chronic stress include poor water quality, overcrowding, and inappropriate diet. Most bacterial infections in fish are secondary to other primary stressors. Your aquatic veterinarian will prescribe the correct treatment following a microscopic diagnosis. Treatment options vary depending on the parasite involved. Many of these clinical signs can present with other diseases, though, so diagnosis can be tricky. Other clinical signs of a parasite infestation include bruising or missing scales and decreased appetite. They will then jump to all the fish in your tank and cause flashing, lethargy, decreased appetite, and even death with severe infestations. When a fish is stressed out from capture, transport and introduction into a foreign system, their immune system is weakened and the parasites can replicate easily. Their immune system keeps them from getting out of control. Commonly fish exist with a low level of parasites on them at all times. Most parasites enter fish systems when new fish are introduced to the aquarium. Ichthyophthirius multifiilis (White spot disease).There are many different parasites that can affect freshwater fish.
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