Big Fish 108 Problems

[Wynellewe Gr]

Though technically not a disease, ammonia poisoning is incredibly common in new fish tanks. Ammonia is a byproduct of the process of organic material breaking down and it can be incredibly toxic for fish. Nitrifying bacteria convert ammonia into nitrite and then into nitrate, which is less harmful.

Prevention is the best option. Make sure any new tank has gone through the nitrogen cycle and has a fully established colony of beneficial bacteria before adding fish. Ammonia spikes can be managed with frequent water changes. It may also help to siphon your substrate during water changes to remove accumulated organic matter.

Not actually a worm but rather a parasitic crustacean, anchor worms are most commonly seen in pond fish but can infect aquarium fish as well. These parasites embed themselves in the muscle, sometimes burrowing into the internal organs. A raised ulcer typically forms at the point of attachment and may provide an opportunity for secondary infections to set in.

Anchor worms are usually only seen in outdoor koi ponds and newly imported tropical fish. Quarantine is essential for all new fish and any that have been infected with anchor worms. Remove adult worms by hand using forceps and treat the wound with fish-safe antiseptic. Continue removing them weekly until no more adult worms develop.

Antibacterial medications are generally the best treatment for bacterial infections. Dr. G, DVM, owner of Aquaveterinarian in South Florida, notes that many antibacterial formulations are less effective in water and are best administered by injection or in food.

Caused by a ciliated protozoa called Brooklynella hostilis, this disease most commonly affects anemonefish but will infect others as well. It usually develops when the fish are extremely stressed, such as when they are overcrowded in retail stores or shipped.

The most common treatment for this disease is a combination of formalin and malachite green. Malachite green can be dosed at a concentration of 0.10 ppm for 7 to 10 days. Formalin is best administered as a bath with 0.5 mL of formalin per gallon of water. Take care when using formalin on fish with severe skin damage, as they may be more sensitive.

This bacterial infection is best treated with injectable antibiotics. According to a 2013 study, external treatment with antimicrobial agents may be effective but only in the early stages of the disease.

Opportunistic bacterial infections are a common cause of dropsy and can be treated with antibacterial medications. Metronidazole may be effective for protozoan infections, but viral causes of dropsy can be very difficult to treat.

Fin rot is often the result of poor water quality but can be exacerbated by fin nipping or bullying behaviors by other fish. Improving tank conditions is a must. In some cases, bacterial infection is involved, in which case antibiotic treatment may be warranted.

Poor water quality, overcrowding and improper diet are key contributors to flukes in fish. Treatment depends on the type of parasite, so proper identification is essential. Formalin is a common treatment but should be used with caution. It removes dissolved oxygen from the water and, in high doses, could cause toxicity.

Caused by a protozoan parasite that attacks the skin and gills, velvet is also called gold dust disease due to its dusty yellow appearance on the skin. Velvet is caused by different parasites in freshwater and marine fish, with freshwater velvet being caused by Piscinoodinium (or simply Oodinium) and marine velvet being caused by Amyloodinium parasites.

Another protozoan parasite, Hexamita, most commonly affects cichlids, gourami and betta fish. They attack the intestines of fish that are already stressed by crowded conditions, poor water quality or shipping, causing weight loss and, in serious cases, death.

Prompt treatment of hexamita infestation is essential to prevent serious weight loss and death. If the fish is still eating, the best treatment is metronidazole in food. If the fish has stopped eating, add the medication to the water at a dosage of 250 mg per 10 gallons.

Ich is most likely to affect fish that are already stressed or sick. Quarantining sick fish is essential, and raising the temperature in the hospital tank can help speed up the life cycle of the parasite to resolve the infestation more quickly. Recommended treatments include copper sulfate and malachite green. Potassium permanganate may also be effective.

Caused by a viral infection, lymphocystis presents as raspberry-like growths. Like many infections, it commonly develops when water quality is poor, but it can also be genetically inherited or transmitted through contact with infected fish.

Manual removal is recommended for larger parasites like anchor worms but may be difficult for smaller infestations like epistylis. Quarantining sick fish is essential to prevent the spread. In some cases, formalin or praziquantel treatments may be effective.

Popeye is much easier to prevent than to treat. Swelling may reduce over time if tank conditions improve, and even minor corneal damage may heal. Dr. G suggests that treating a hospital tank with aquarium salt may also be beneficial.

Reducing stress is an important element in treating any parasitic infection, especially because the risk of secondary infections is high. Formalin, copper sulfate and potassium permanganate are the most common treatments.

The swim bladder is a gas-filled organ that helps fish maintain their buoyancy. Swim bladder disease is less a disease than a dysfunction of this essential organ. It can be a side effect of constipation, liver or kidney problems, or underlying fungal or bacterial infections. It is particularly common in fish, such as fancy goldfish, that have a globoid (rounded or spherical) body shape.

Proper treatment depends on the underlying cause. For constipation, withhold food for up to 48 hours and offer skinned frozen peas (thawed) as a natural laxative. In some cases, treating with aquarium salt may also help.

Common in coldwater fish, such as carp, ulcers are sores that result from inflammation of the external tissues. They can be caused by factors ranging from physical injury to bacterial infection. Other factors that may contribute to the development of ulcers include parasites, poor water quality, high ammonia levels, or low pH.

Treatment of ulcers also depends on the cause of the issue. Start with a 30- to 50-percent water change and quarantine the affected fish. For bacterial causes, antibiotic treatment may be necessary. In other cases, aquarium salt may help.

Sometimes shortened to VHS, viral hemorrhagic septicemia is a viral infection first discovered in the US in the Great Lakes region in the early 2000s. The more common form of hemorrhagic septicemia seen in aquarium fish is caused by bacteria.

Bacterial treatments are the best option for hemorrhagic septicemia and should be administered by injection or in medicated food. Experts caution against over-the-counter antibiotics, as they are much less effective.

Being able to identify aquarium fish diseases is essential. Equally important, however, is maintaining your tank with the ideal conditions to keep your fish from getting sick in the first place. While your tank parameters should be catered to your specific fish, there are a few simple steps any aquarium hobbyist can take to keep a freshwater or saltwater aquarium healthy.

While water changes are essential for maintaining ideal tank conditions, Dr. G cautions against performing water changes of over 50 percent of your tank volume. Small weekly water changes are better than large monthly changes. He says not to change your filter media on the same day as a water change to avoid killing off too many beneficial bacteria.

According to the Merck Veterinary Manual, lack of proper nutrition is one of the most common contributors to aquarium fish diseases. Choose an appropriate food for the species of fish you keep and feed them modestly. Excess food will just decompose and interfere with the water chemistry in your tank, stressing your fish.

For the study, published this week in BMJ Medicine, researchers analyzed in-patient hospital records and death data for 415,737 people ages 40 to 69 years old living in the United Kingdom. Nearly one-third of the people said they regularly took fish oil supplements, and those people were more likely to be women, older, and White.

Fish oil was linked to a 13% higher risk of having atrial fibrillation as a first-time heart problem, and also linked to a 5% higher risk of a stroke as a first-time heart problem. Atrial fibrillation is an irregular (and sometimes very rapid) heart rhythm that is linked to a higher risk of having stroke.

But there were groups of people in the study who took fish oil regularly who had a lower risk of heart problems. Those who had heart disease had a 15% reduced risk of progressing from atrial fibrillation to having a heart attack, and a 9% reduced risk of death after getting a blood-pumping condition known as heart failure.

The following is a list of aquarium diseases. Aquarium fish are often susceptible to numerous diseases, due to the artificially limited and concentrated environment. New fish can sometimes introduce diseases to aquaria, and these can be difficult to diagnose and treat. Most fish diseases are also aggravated when the fish is stressed.

The goal of quarantine is to prevent problems in the main tank due to sickness. A quarantine tank should be used before to introduce any newly acquired animals in the main tank and to treat fish that are already sick. By doing this, the aquarist can avoid the spread of the disease and make it easier to treat the fish.[1]

Robert Woods has been a fish keeping enthusiast ever since his parents bought him is first tank at age 4. Since then, he has gone on to keep hundreds of different species and now educates aquarists through his online publication Fishkeeping World.

Ghost fishing occurs when old fishing equipment is lost (or tossed), and continues to catch or entangle fish and other marine life. This can also trigger a chain of injuries or deaths, when smaller animals get caught in abandoned nets, and larger predators in search of their prey find themselves caught in the nets too. Suggestions to prevent ghost fishing includes bio-degradable equipment, as well as schemes which encourage fishermen to recycle gear or other incentives such as buy-back programs.

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