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COLOMBO Alparex 2500 ml is a liquid treatment designed to protect freshwater pond fish against invisible parasites , white spot disease , and certain associated fungal infections. Its formula acts quickly on difficult-to-detect pathogens such as Ichthyobodo, Chilodonella, and Trichodina, often responsible for a grayish film , unusual rubbing, faster breathing, and a decreased appetite. Thanks to its large container, this version can treat up to 50,000 liters of water , making it particularly suitable for large ponds and heavily stocked systems. Easy to measure with its included graduated measuring cup, Alparex 2500 ml helps restore calmer fish, a healthier pond, and provides rapid intervention at the first signs of symptoms.
Alparex 2500 ml was designed for ponds requiring effective, easy-to-administer treatment suitable for large volumes. It targets invisible parasites such as Ichthyobodo , Chilodonella, and Trichodina , known to severely irritate fish and weaken their natural protective barrier. It also combats white spot disease , one of the most common and dreaded ailments in ponds. When fish rub against stones, plants, or the sides of the pond, become nervous, breathe faster, or lose their appetite, prompt intervention becomes essential. With this 2500 ml format, Alparex provides a reliable solution for the needs of large ponds and significant populations of ornamental fish.
This treatment is distinguished by its rapid action . Once dispersed in the water, it begins to target the agents responsible for skin disorders and abnormal behavior observed in fish. This responsiveness is invaluable, as parasites often take advantage of a moment of weakness: transport, introduction of new fish, overcrowding, stress, or unstable water quality. By acting early, it becomes easier to slow the progression of skin lesions, reduce fish discomfort, and prevent the situation from worsening in the gills. For a pond owner, this is exactly the type of treatment to have on hand when the first signs appear.
White spot disease, caused by Ichthyophthirius multifiliis , manifests as small white spots on the skin of fish, resembling grains of salt. It more readily affects already weakened fish and can develop very quickly after stress or a change in the pond. Affected fish rub against each other, become agitated, clamp their fins, and exhibit unusual behavior. If the disease progresses, it can severely damage the skin and then reach the gills, disrupting respiration and putting the fish at serious risk. Alparex is specifically designed to combat this disease and help stop its progression before it causes more serious consequences in the pond.
Invisible parasites don't always cause obvious signs initially, but they often leave typical clues. A fish that produces excessive mucus, whose skin turns grayish-white , breathes faster, or remains lethargic at the bottom of the tank will immediately raise concerns. These problems can be caused by several parasites present simultaneously, and it's not uncommon for a parasitic irritation to also lead to other infections. Alparex can also be useful when a severe fungal infection accompanies these parasites, with the appearance of cottony masses on the skin or gills. It is therefore a particularly valuable treatment when symptoms are mixed and prompt action is required.
With its 2500 ml capacity , this packaging is clearly designed for large volumes. It allows you to treat up to 50,000 liters of water , making it an ideal choice for large decorative ponds, koi ponds, or heavily stocked setups. This large format eliminates the need to use multiple bottles, while maintaining precise and convenient dosing. Treatment is carried out according to a simple two-day protocol: 1 ml per 40 liters of water on the first day, then the same dose on the second day. For large ponds, this packaging offers significant time savings and greater peace of mind during treatment.
To use Alparex correctly, simply measure the required amount with the provided measuring scoop, then dissolve it in pond water before distributing it evenly over the entire surface. This can be done in a bucket or watering can for more even distribution. During treatment, it is advisable to run the air pump to maintain good oxygenation. Filtration can remain active, but do not use activated carbon or zeolite filters. UV lamps and certain other equipment should be switched off for up to one week after applying the product. It is also recommended not to perform any water changes during treatment.
Alparex should not be used with flubendazole or related substances. If the pond has already received this type of treatment, wait at least 4 weeks and replace at least 25% of the water before using Alparex. A minimum waiting period of 2 weeks must also be observed with FMC-50. As sturgeon are sometimes more sensitive to this product, it is advisable to treat them separately with half the dose . This product is intended for use in freshwater ponds only . Keep out of reach of children, store between 4 and 32°C , handle with care, and avoid contact with skin, eyes, and accidental ingestion. Be aware that it may leave permanent stains on clothing and surfaces.
In a pond, the success of a treatment also depends on water quality. Unbalanced, overly nutrient-rich, or unstable water slows the fish's recovery and can limit the product's effectiveness. It is therefore advisable to test the water before and after treatment to adjust the parameters if necessary. Alparex may temporarily color the water, which is normal during the treatment phase. To restore clearer water afterward, weekly water changes of 10 to 20% can be performed starting one week after the last application, and activated carbon can be used at the appropriate time. This rigorous management helps maintain a visually clean pond while supporting the fish's recovery.
COLOMBO Alparex 2500 ml is a solution particularly suited to enthusiasts seeking a powerful, fast, and economical treatment for very large ponds . Its large volume, targeted action against white spot and invisible parasites , simple two-day protocol, and ease of application make it an ideal choice for maintaining the health of ornamental fish. This large-volume format perfectly meets the needs of large installations requiring a reliable, practical, and effective solution to act immediately at the first signs of infestation.
Colombo FMC-50 , in 250 ml format (for 6,750L), is the ideal solution for treating fungal and bacterial diseases in your pond fish, including Koi. Extremely effective against mycoses and white spot disease , this powerful treatment acts quickly to neutralize pathogens without compromising the health of your fish. With its advanced formulation and simplified use, FMC-50 ensures optimal protection for your pond while preserving the balance of your aquatic ecosystem.
Colombo FMC-50 , in 500 ml format (for 13,500L), is the ideal solution for treating fungal and bacterial diseases in your pond fish, including Koi. Extremely effective against fungal infections and white spot disease , this powerful treatment acts quickly to neutralize pathogens without compromising the health of your fish. With its advanced formulation and simplified use, FMC-50 ensures optimal protection for your pond while preserving the balance of your aquatic ecosystem.
Colombo Alparex 250 ml (for 5m3) is a powerful treatment designed to effectively eliminate external parasites and common diseases such as white spots and fungus in your pond fish , including Koi. Thanks to its fast-acting formula, it begins to neutralize pathogens as soon as it is introduced into the water, providing immediate relief to your fish. Simple to use and highly effective, Alparex is the essential ally for any pond owner who wants to ensure the health of their fish and preserve the balance of their aquatic ecosystem.
Colombo Alparex 500 ml (for 10m3) is a powerful treatment designed to effectively eliminate external parasites and common diseases such as white spots and fungus in your pond fish , including Koi. Thanks to its fast-acting formula, it begins to neutralize pathogens as soon as it is introduced into the water, providing immediate relief to your fish. Simple to use and highly effective, Alparex is the essential ally for any pond owner who wants to guarantee the health of their fish and preserve the balance of their aquatic ecosystem.
Colombo Cytofex 250 ml (for 2.5 m3) is the treatment to combat external bacterial infections of your pond fish, including Koi . Formulated with 100% natural ingredients such as Tea Tree oil and extracts of Iceland moss and Pau d'Arco, it ensures an effective and environmentally friendly antibacterial action. Ideal for treating skin ulcers, fin rot and other conditions , Cytofex is the perfect solution to restore the health of your fish and preserve the balance of your pond.
Colombo Cytofex 500 ml (for 5 m3) is the treatment to combat external bacterial infections of your pond fish, including Koi . Formulated with 100% natural ingredients such as Tea Tree oil and extracts of Iceland moss and Pau d'Arco, it ensures an effective and environmentally friendly antibacterial action. Ideal for treating skin ulcers, fin rot and other conditions , Cytofex is the perfect solution to restore the health of your fish and preserve the balance of your pond.
COLOMBO Alparex 1000 ml is a liquid treatment specifically designed for freshwater pond fish affected by invisible parasites , white spot disease, and certain associated infections. It acts quickly on parasites that are difficult to spot, such as Ichthyobodo, Chilodonella, and Trichodina, which are often responsible for a grayish film , repeated rubbing, loss of appetite, or lethargic behavior. This large size allows you to treat up to 20,000 liters of water , making it a practical choice for heavily stocked ponds. Easy to dose with its included measuring cup, Alparex helps restore a healthier pond, calmer fish, and provides rapid treatment at the first signs of infestation.