Aquasonic Formalin Malachite Solution – White Spot, Parasite & Fungal Treatment
A versatile and effective fish medication for treating a wide range of common diseases in koi, pond fish and aquarium fish. Aquasonic Formalin Malachite Solution targets the most frequent causes of fish illness, white spot, external parasites and fungal infections, making it a reliable first-response treatment to keep on hand.
What It Treats
- White spot disease (ich): one of the most common ailments in both ponds and aquariums, often introduced with new fish or plants. Presents as small white spots on the body and fins. Highly contagious and potentially fatal if left untreated.
- External parasites: effective against a broad range of parasites that attach to the skin, gills and fins of fish.
- Fungal infections: treats fungal outbreaks that commonly follow injury or poor water quality.
Dosage & How to Use
- Remove all activated carbon from your filtration system before treatment — it will absorb the medication and render it ineffective.
- Add 5ml per 20 litres of pond or aquarium water.
- Ensure strong aeration is running throughout the treatment period for best results.
- Repeat treatment every three days if necessary.
⚠️ Important
- Do not use on fish intended for human consumption.
- Avoid contact with skin and eyes — the malachite dye will stain on contact.
- Always remove activated carbon before dosing.
Not sure what’s wrong with your fish? Get in touch — our experienced staff are happy to help you identify the problem and find the right treatment.
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