6 Most Commonly Seen Freshwater Fish Diseases

Fish diseases are some of the least well understoodan environmental factor, other fishes are likely to be
illness among pets. Cats and dogs are mammals andaffected as well.
therefore there are similarities between humanYou need to find out what is the cause of the stress
treatment and animal treatment.and remove it. The fishes can be treated easily using
But fishes are a whole different class of animals andantibiotics available from local fish stores.
most pet fishes aren't taken to a vet when they fall ill.Fish Fungus
There is a lack of medical records with regard to fishFish Fungus is also known as cotton wool because the
diseases. Commercial fishes, because of theirsymptoms look cotton wool growths on the body,
commercial value, are given medical and preventivemouth and fins of the fishes.
treatment to cure them of their illness. ButIt is not actually a fungus, but like Fin Rot, it is a result of
unfortunately the medical cases and forms ofinvasion by opportunistic bacteria. This is likely due to
treatment applicable to commercial fishes are usuallylow water quality resulting in stress for the fishes.
not well suited for fish tanks and aquariums at home.Again, remove the source of the stress and treat your
One of the biggest fears with fish diseases is thefishes with antibiotics to cure the bacteria infection. Fish
possibility of contagion. You can never be sure if theFungus is also contagious, so it's best to isolate the
infested fish could quickly spread the disease to theaffect fish in a different tank.
rest of the tank and killing off your entire fishNitrite/Nitrate Poisoning
population.Nitrate poisoning is not a disease, but a problem with
The first thing you would want to know when youthe water quality. But the symptoms of sluggish fish
spot a diseased fish is, "what illness is it?" and the nextand gills that appear brown in color lead most people
question is "is it contagious and how can I treat it?"to mistake it for a disease.
Here's a list of common diseases seen amongNitrate poisoning usually follows elevated ammonia
freshwater fish tanks and how you can treat it.levels in the water. The bacteria colonies break down
Ammonia Poisoningthe ammonia and convert them to nitrates. While
Ammonia poisoning is not a real disease by it is sonitrates are less toxic than ammonia, they are still
common among fish tanks and aquariums that wepoisonous at high levels. Nitrates can also result in
have listed it here. The gills of fishes become red andalgae blooms that result in yet more problems for your
inflamed, and fishes are seen at gasping for air at thefish tank.
water surface.You can remove nitrates by adding sodium chloride
Treatment is performed simply by reducing ammonia(common salt) into the water. A low concentrations,
content in the water. There are plenty of products inthey are harmless to the salt and can lower nitrate
the market that allows you a one-time reduction oflevels. Another way to remove nitrate is by rearing
ammonia level. But to solve the problem permanently,water plants in your tank. Plants take in nitrates as part
you need to invest in a better filtration system,of the nutrients they require for growth.
especially a biological one. Proper cycling of your tankIchthyophtirius
must be done to establish bacteria colonies forIchthyophtirius is also known as the White Spot
reducing ammonia or you can also solve the problemDisease. Fish owners will be very familiar with this one.
by reducing the number of fishes in your tank.Fishes affected with the disease appears to have
Dropsywhite spots on the skin especially around the fins.
Dropsy is caused by an internal bacterial infection.White spot is caused by poor water quality, but it is
Usually the fish's chance of survive is very small byalso common with new fishes that have been
the time the disease is spotted. The fish becomesintroduced into the tank. New fishes experience high
bloated and its scales are raised off the body.levels of stress which weakens their immunity. Like all
Dropsy is not highly contagious, so you don't have tothe other disease, removing the stress factor and
worry about the disease spreading, but still you shouldtreating with antibiotics will restore your fishes to health.
isolate the infected fish as a form of safeguard. ThereIt is very much more contagious, so you have to react
are medications which can cure the fish, but it may notquickly to isolate the infect fish and to perform the
be effective since the fish may already be too weaktreatment.
by the time the diagnosis is made.Most of these common diseases can be treated, but
Fin Rotprevention is always better than cure. You probably
As the name suggests, Fin Rot is typified by the rottingmight have noticed that most of these diseases are a
of the fish's fins. The fish tends to lie on the bottom ofresult of stress and poor water quality. To prevent
the tank because it is becoming difficult for the fish toyour fishes from falling sick in the first place, you should
swim.take extra care in these areas.
The disease is not caused by specific bacteria, but isAnd in the unfortunate case where you fishes do fall
caused by stressed. Stressed fish have weakenedsick, this list will hopefully help you take the right steps
immune systems and that allows opportunistic bacteriatowards restoring your fish tanks to health.
to invade, causing fin rot. Since the stress is likely to be