Internal bacterial infections in fish are common but have historically been difficult to treat, often requiring vet-prescribed antibiotics. Interpet Anti Internal Bacteria Fish Treatment is a breakthrough non-prescription solution. This product effectively halts the progression of bacterial issues in your aquarium and helps prevent their spread. It is designed for combating outbreaks of internal bacterial infections, including those caused by Aeromonas and Pseudomonas species, ensuring healthier fish without the need for a veterinary prescription.