One of the most common freshwater aquarium fish diseases, Ich is caused by a protozoan parasite called Ichthyophthirius multifiliis. This disease is not only common among freshwater fishes but it is also highly persistent and contagious. If you do not keep a close eye on your fish and take action…
One of the most common diseases that freshwater aquarium fish will be infected by is Ichthyophthirius multifiliis, also known as Ich or White Spot Disease. This article will give you some valuable tips for treating and preventing Ich.
No matter how careful you are about quarantining new fish and maintaining high water quality, your tank may still experience an outbreak of an aquarium fish disease. One of the most common freshwater fish diseases is Ichthyophthirius multifiliis, more commonly known as Ich. This disease is not only common among freshwater fishes but it is also highly persistent and contagious. If you do not keep a close eye on your fish and take action to treat Ich as soon as it appears, you could very well have a tank-wide infection on your hands. In order to protect your fish against this disease it is wise to learn the basics about its symptoms and treatment.
What is Ich?
One of the most common freshwater aquarium fish diseases, Ich is caused by a protozoan parasite called Ichthyophthirius multifiliis. This protozoan parasite is an ectoparasite, meaning that it lives on the skin of its host. Ichthyophthirius multifiliis is also an obligate parasite which means that it cannot survive outside the host body. When it first attaches to the host body the Ich parasite lives within a nodule inside the skin or gills of the host fish, feeding on it. During this period of growing and feeding, the parasite is called a trophont.
After a time, the parasite begins to divide through the process of binary fission and leaves the host, dispersing itself among the plants, gravel and ornamental objects in the aquarium. Once it reaches this stage, the trophont becomes a tomont and it produces sticky, capsule-like cyst that allows it to adhere to almost any surface it comes into contact with. While inside the cyst, the tomont may produce as many as 3000 tomites which then break out of the cyst as theronts and actively seek out a new host body to infect.
Symptoms of Ich
Ich is also commonly referred to as Whitespot Disease because the main symptom is the appearance of tiny white spots on the bodies of infected fish. These spots typically pop up on the fins, gills and body of infected fish and may be as large as 1mm in diameter. Other symptoms of this disease may include loss of appetite, rapid breathing, flashing, resting on the bottom of the tank and rubbing against tank objects. When a fish first becomes infected with the parasite it is not likely to show any symptoms at all but the disease progresses fairly quickly and it does not take long for the body of the fish to become covered in white spots. Click the image of the cichlid for a better view.
Recommended Treatment Options
If you catch the symptoms of Ich before it has spread to any other fish in the tank, it would be wise to quarantine the infected fish. You should still dose the entire tank to kill the parasite, however, thus preventing further outbreak. Removing the infected fish as an added precaution may help to preclude the spread of the disease to other fish. The first thing you should do in treating this disease is to slowly begin raising the temperature in both the main tank and the quarantine tank. The life cycle of the Ich parasite typically lasts around two weeks but higher temperatures will shorten the life cycle of the parasite. The more quickly the parasite progresses through its life cycle, the sooner it will become susceptible to medication. Remember to increase the aeration and/or water surface agitation to increase oxygen levels since an increase in water temperature will cause a decrease in available oxygen levels.
Two of the most common commercial medications recommended for Ich are Formalin and Malachite Green. If you choose to utilize a chemical treatment, read the dosing instructions on the bottle carefully in order to determine how much to use. If you have scale-less fish like catfish in your tank, cut the recommended dosage in half. When treating your tank with any kind of chemical medication it is necessary to remove any activated carbon from your filter because it will remove the medication from the water. Treat both the main tank and the quarantine tank for a period no shorter than 10 days to ensure that the parasite has been eradicated. During this period, observe the fish in your tank for signs of secondary infections which are fairly common in fish that have already been weakened from a parasite attack.
Another common treatment for external parasite infections like Ich is salt. Regular uniodonized table salt can be used for this purpose, as can aquarium salt and Epsom salt. In order to treat Ich using salt, prepare a 0.3% solution to dip the most infected fish. To achieve this concentration, mix approximately 3 teaspoons of salt per gallon of water in a separate container. Dip the infected fish in the solution for no more than 3 minutes then return it to the hospital tank. Dosing the entire tank with 1 teaspoon of salt per gallon can also be effective. If you choose this option, repeat the treatment every 24 hours.
Tips for Preventing Ich
Although it has already been said that quarantining new fish and maintaining high water quality is no guarantee that your fish will never fall ill, these steps are two of the best ways to prevent Ich from ever entering your aquarium. It is not uncommon for pet store tanks to become infected with Ich – it only takes a single fish to infect an entire tank and the chances are good that, after the shipping process, the fish in overstocked pet store tanks are already stressed. Bringing home a fish that has been exposed to or infected with Ich is the most common way the parasite is likely to enter your aquarium. If you quarantine all new fish for at least two weeks you can greatly reduce the chances that you will accidently introduce the Ich parasite into your tank. While your new fish are in quarantine you can observe them for signs of the illness and treat them if necessary.
Maintaining high water quality in your tank is essential for keeping your fish healthy. Happy, healthy fish are much more equipped to evade a parasite infection like Ich and, in the event that they do contract the disease, they may also be more likely to recover successfully. Keep up with your routine water changes on a weekly basis and always change your filter media every month to ensure that the water in your tank stays fresh and the toxin levels are low. If your tank is clean, your fish are less likely to become stressed and thus less susceptible to contracting diseases like Ich.
Because your fish may not get all the nutrients they need from a staple diet of commercial fish food, it is recommended that you occasionally
There are a number of rumors floating around in the aquarium hobby about the ability of garlic to treat a variety of fish diseases in both freshwater and saltwater fish. Few scientific studies have been conducted, however, and many experienced hobbyists agree that while giving fish garlic may help to treat some diseases and to promote recovery from certain conditions, garlic does not actually cure disease. In a study conducted by renowned Discus fish breeder Jack Wattley, D
Because most commercial foods on the market do not provide complete nutrition for
In order to ensure that your fish receive the nutrients their staple diet may be lacking, you should also formulate a supplemental diet. This diet should include a variety of live, frozen and freeze-dried foods such as bloodworms, white worms, brine shrimp, daphnia and whatever else you can find at your local pet store. In addition to the supplemental diet, you should also provide your fish with vitamin and mineral supplements once in a while to maintain their health. Many supplements come in liquid form which makes them easy to administer, though some supplements come in dissolving block form as well.
Commercial fish foods are widely available in a variety of forms including flakes, pellets, granules and wafers. Not only are these foods easy to come by, but they also tend to be fairly cheap. When selecting a commercial food for the staple diet of your fish, don’t simply pick the cheapest option – look for a reputable brand name and a type of food that has been specially formulated for the particular type of fish you have in your tank. Commercial foods are often formulated for certain types of fish such as tropical fish, marine fish and Cichlids. Your fish may also benefit from a vitamin-enhanced or mineral-enhanced commercial food. These foods are particularly helpful in maintaining healthy coloration in tropical aquarium fish.
Because there are a number of hazards associated with overfeeding your fish, it is wise to establish a feeding routine. If you plan to feed your fish at certain times throughout the day you will be unlikely to forget whether you have already fed them and end up giving them too much food. Most aquarium hobbyists recommend feeding freshwater aquarium fish small amounts of food twice a day. Only offer your fish as much as they can consume in 3 to 5 minutes and remove any uneaten portions of sinking pellets and wafers after an hour, before they completely dissolve. By following these guidelines you can avoid issues with water quality which may arise due to an excess of uneaten fish food building up along the bottom of your tank.
Even novice aquarium hobbyists are likely to make the connection between a clean tank and healthy fish. Water quality is directly related to the health of aquarium fish, but many hobbyists do not realize that there is also a connection between nutrition and fish diseases. While a poor diet may not directly cause your fish to become ill, it could weaken them and increase their susceptibility to disease. In order to ensure that your aquarium fish stay happy and healthy, it is wise to cultivate an understanding of how nutrition relates to fish diseases. Once you understand this connection, you’ll be better equipped to provide your fish with the type of balanced diet they need in order to maintain their health.
Though it is possible for commercial foods to become contaminated, live foods are more likely to carry fish diseases into the aquarium. Live foods such as tubifex worms and bloodworms that have been gathered from contaminated waters may introduce harmful bacteria or viruses into your home aquarium. Buying your live foods from a reputable source can help reduce the risk of contaminants, but it is not a guarantee. Many aquarium hobbyists choose to cultivate their own stores of live food in order to avoid problems with contamination. Not only is this option a great way to protect your fish from disease, but it can also save you a noticable amount of money.
Different species of fish have different nutritional needs. For example, a carnivorous species of fish will require a high percentage of protein in its daily diet in order to thrive, whereas the diet of an herbivorous species should consist mainly of plant matter. If you do not understand the nutritional needs of your fish you may end up feeding them the wrong food – which could bring about a nutritional disease or deficiency. Nutritional diseases and deficiencies are most likely to occur in fish that are fed a staple diet of commercial foods. Processed flakes, pellets and granules do contain essential nutrients, but not enough to keep your fish thriving.
If you plan to raise your fish on a diet of commercial foods, supplement these foods by occasionally offering live, frozen or freeze-dried foods depending on the type of fish you have. For carnivores, live foods such as bloodworms, white worms and brine shrimp are excellent sources of nutrients, especially protein. These foods and others are also typically available in frozen and freeze-dried form – for the best results, offer your fish a mixture of foods and food types. Herbivorous species of fish should be given spirulina wafers and plenty of fresh vegetables in order to ensure that they receive adequate nutrition. All species of fish can benefit from vitamin and mineral supplements. Vitamin deficiencies can lead to nutritional
Species of Carnivorous Fish
• Discus Fish
• Piranha
In addition to these dietary basics, carnivores also need vitamins and minerals in their diets. Vitamins and minerals are essential for the growth of healthy bone, scales and tissue. Vitamin C, in particular, is instrumental in bone development along with healing and digestion. Vitamins B2 and B6 deal with enzymes and Vitamin B1 helps to breakdown carbohydrates and promotes healthy growth and fertility. Calcium and phosphorous are the two most important minerals for aquarium fish – these minerals are necessary for maintaining healthy scales, bones and teeth. While some vitamins and minerals may be ingested naturally through the foods you give your carnivorous species of fish, it is often necessary to provide supplements or to “gut load” live foods to ensure that fish get the vitamins and minerals they need.
Fish
Fish Meal
Shrimp
Beef Heart
Fin Rot
Because bacterial infections are common in tanks affected by poor water quality, the key to preventing these infections is to keep your tank clean. Avoid overfeeding your fish in order to prevent excessive waste build-up and ensure that your tank is outfitted with an adequate filtration system to help remove solid as well as dissolved wastes from the tank. Regular water changes are another essential part of keeping your aquarium clean. Unless you change 10% to 25% of the water in your tank on a weekly basis, toxins and waste could build up in your tank water and bring down the water quality. Not only does poor water quality provide an ideal environment for bacteria to grow but it may also put stress on your fish, thus making them more susceptible to disease.
A parasite is an organism which invades the body of another organism and feeds on it. In many cases, the parasite benefits at the expense of the host body which may decline in health and could even be killed as a result of the infection. Parasites are typically divided into two groups: ectoparasites and endoparasites. Ectoparasites are those parasites which live on the outside of the host body, namely the gills, mouth, fins and skin of aquarium fish. Endoparasites are those which live inside the host body, inhabiting the blood, tissues and/or organs. Parasites can be transmitted through a variety of means depending on the particular parasite. Some are transferred through direct contact while others, in the free-living phase, can be found floating in tank water or inhabiting the substrate. Parasites having a direct life-cycle are transmitted directly but may involve a free-living phase where they can survive in tank water for a limited period of time. Parasites with an indirect life-cycle can only survive in the host body.
When it comes to treating a parasite infestation, you need to first decide whether you want to treat the individual fish or the entire tank. If you catch the parasite early enough that only one of your fish has been infected, removing that fish to a quarantine tank for treatment may be sufficient. Even if only one of your fish seems to be infected, however, treating the entire tank is a wise precaution. Just remember to remove any carbon filter media when treating the tank as carbon will reduce or negate the effectiveness of medications. Before you make this decision it may be helpful to identify the type of parasite involved – some parasites are unable to survive in tank water, so treating the entire tank may not be necessary.
Like all living things, aquarium fish have specific nutritional needs that must be met if they are to thrive. While there may not be a food pyramid to refer to when it comes to examining the diet of your aquarium fish, there are a few main categories of nutrition that you should be aware of. All aquarium fish need protein, lipids (fats), carbohydrates, vitamins and minerals but the recommended amount from each category may depend on the type of fish. Carnivorous fish, for example, may require more protein than an omnivorous species of fish, while herbivorous fish need a diet consisting mainly of vegetables.
Keep in mind that different types of
Egg Fungus
You don’t need to be an experienced aquarium hobbyist to understand that clean tank water is less likely to encourage fungus growth than dirty water. This being said, it should come as no surprise that performing routine water changes and ensuring adequate filtration are key steps in preventing
Bacterial
Viral
Parasite
Few pet stores breed their own stock – most of them receive shipments of aquarium fish from commercial breeders or from distributors. The shipping process is stressful for fish and being kept in small store tanks with large numbers of fish can have a negative effect on a fish’s health. This being true, it is wise to quarantine new fish for a period of at least two weeks prior to introducing them into your tank. By quarantining new fish you can observe them for signs of disease and treat them if necessary. If, after the two week period, the fish show no signs of illness they can be considered safe to add to the tank.
It should go without saying that healthy fish are less susceptible to disease than fish that are stressed, injured or in less than peak condition. One of the best ways to ensure that your fish stay healthy is to feed them a varied diet of live, frozen, freeze-dried and flake foods. Like all living things, aquarium fish require certain nutrients to thrive and if they do not receive those nutrients through their diet they are likely to suffer from malnutrition. Malnourished fish are much more susceptible to
When first infected, fish carrying the Pleistophora hyphessobryconis parasite may exhibit no symptoms at all. As the parasite spreads throughout the body, the host fish may become less social, prone to hiding rather than moving with the school. Infected fish may also lose their appetite and, due to a combination of poor nutrition and the progression of the disease, they may also lose their coloration or develop white patches on their flanks. In the final stages of the disease, infected fish may develop swellings or contortions accompanied by difficulty swimming. These symptoms are often visible indications of internal damage to the musculature of the host fish.
This disease is notoriously difficult to treat, largely because it is so tricky to diagnose. Once the diagnosis has been confirmed, the disease has likely progressed past the point of possible recovery. If the affected fish are still exhibiting mostly normal feeding behavior and movements, an antibiotic treatment may help. In most cases, however, there are no effective treatments for Neon Tetra Disease. Most aquarium hobbyists take one of two actions when they suspect an outbreak of Neon Tetra Disease – they either euthanize the affected fish immediately to prevent the spread of the disease or they move the affected fish to a quarantine tank until the diagnosis can be confirmed. If a fish infected with Neon Tetra Disease is allowed to remain in the main tank, it is only a matter of time before the disease spreads to the rest of the school and perhaps to other fish in the tank as well.
As you wander through the aquarium aisle at your local pet store you may be overwhelmed by the sheer volume of choices in flake foods alone. In addition to flake foods, there are also pellets, granules and wafers, not to mention frozen and freeze-dried foods. If you want to give your fish the best diet you can possibly give them, however, you need to move away from the processed foods and stick to live foods. Live 
White Worms
Processed
Frozen
To minimize the stress to your fish and to maximize the ease of cleaning, hospital tanks should be kept relatively bare. Fill your hospital tank with as much water from the main tank as possible in order to make the transition easier on your sick or injured fish. If you do need to add new water to fill the tank, make sure it is as close in temperature to the main tank as possible. Set up your submersible aquarium heater and set it to the desired temperature. Allow the temperature in the tank to stabilize before you transfer the fish.
Once your fish has recovered and you have transferred it back into the main tank you will need to disinfect the hospital tank before storing or reusing it. Empty the tank completely and re-fill it with a ten-to-one solution of water to bleach. Let the filter run for about an hour to ensure that the entire tank and the filter itself have been fully disinfected. To remove the bleach safely, empty the tank and refill it – then dose it with ten times the normal amount of de-chlorinating solution. Once you have let the filter run for at least an hour it will be safe to empty the tank then dry it and store it.





