Description
Aquasonic Formalin/Malachite Solution 100ml
Aquasonic Formalin/Malachite Solution 100ml (SKU: AQS18) is a powerful, dual-action antiparasitic treatment designed to eradicate stubborn protozoan parasites in freshwater aquariums. Combining the synergistic properties of formalin (formaldehyde) and malachite green, this solution effectively targets a wide range of common freshwater fish diseases, including whitespot (Ich), external parasites, fungal infections, slimy skin disease, and cloudy skin conditions and severe cases of Whitespot (Ich), Velvet (Oodinium), Costia, Trichodina, and Chilodonella. It is an essential treatment when standard milder antiparasitic medications fail to clear persistent infestations.
This copper-free formulation is designed for freshwater fish-only aquariums and should not be used in systems containing invertebrates.
Precautionary Note: Do not use in aquariums containing shrimp, snails, or other invertebrates.
Usage & Application
When to Use
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Severe Whitespot & Velvet: Treat persistent or advanced outbreaks of Whitespot and Velvet parasites. Visible external parasites on skin or gills; slimy, cloudy, or dull skin appearance
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Resistant Protozoan Infections: Apply when fish suffer from Costia, Trichodina, or Chilodonella causing heavy slime coat secretion and flashing.
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Rapid Quarantine Action: Use in quarantine tanks for fast-acting control of external protozoans on wild-caught or newly imported stock.
How to Use
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Turn off UV sterilisers and remove active carbon filtration prior to application.
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Ensure strong tank aeration, as formalin temporarily decreases dissolved oxygen levels in water.
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Shake bottle well before use.
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Dosage Rate: Add 5 mL per 20 litres of aquarium water daily for 4 consecutive days.
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Temperature Adjustment: Gradually raise water temperature by 2-3 degrees Celsius, staying within safe limits for the fish being treated, to enhance effectiveness.
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Monitoring & Aftercare: Repeat dosage after 2 to 3 days if necessary; observe fish daily for improvement. Once treatment is complete, perform a partial water change to maintain water quality. Perform a 25% to 30% water change between doses.
Product Specifications & Highlights
Key Features
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Synergistic Dual Formula: Blends formalin and malachite green for high-potency parasite elimination. Combines the proven effectiveness of Formalin and Malachite Green to rapidly address whitespot, ectoparasites, and fungal infections.
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Broad Protozoan Range: Controls Ich, Velvet, Costia, Trichodina, and Chilodonella.
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Fast-Acting Solution: Rapidly clears free-swimming parasites and attached skin organisms. Begins acting quickly to reduce irritation and eliminate disease-causing organisms.
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Compact Size: 100ml bottle ideal for targeted home aquarium treatments.
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Copper-Free Treatment: Suitable for aquariums where copper-based medications are not desired, while still delivering strong disease control.
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Improves Skin & Scale Appearance: Helps clear cloudy, slimy, or turbid skin, restoring a healthier and cleaner appearance to affected fish.
Product Details
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Brand: Aquasonic (Australia)
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SKU: AQS18
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Product Type: Medications / Antiparasitic Treatment
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Formula Type: Formalin & Malachite Green (copper-free)
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Volume: 100 ml
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Target Environment: Freshwater fish-only aquariums
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Use: Whitespot (Ich), external parasites, fungal infections, slimy skin disease in Fish of freshwater aquariums


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