When fish, fry, or eggs show signs of fungal infections such as fluffy cotton wool-like growths. If fish have grey, velvety film over their body or have excess mucus. If fish have red open wounds, ulcers, missing scales, rotting fins, or eroded mouth tissue.
Methylene Blue can be used to treat bacterial, fungal, and some external protozoan parasitic infections. It is safe for use with eggs and fry. It is best used in a quarantine aquarium or treatment bath but can be added to the aquarium water, when transporting fish, or applied directly to wounds.
- This product may kill live plants and shrimp if overdosed.
- This product will affect beneficial bacteria in the biofilter.
- This product can stain skin, aquarium ornaments, and silicone.
- Continue filtration during treatment but remove carbon. Carry out a 25% water change after finishing treatment, and reapply any carbon to the filter.
- If applying directly to wounds, dab undiluted Methylene Blue on affected areas using a cotton bud.
