Have you ever noticed red or pink stains around your shower, sink, or bathroom tiles? Many UK homeowners mistake this for rust, but it’s actually red mould. Sometimes it’s a bacteria called Serratia marcescens, and other times it’s mould like Fusarium. It thrives in damp homes, especially in poorly ventilated areas. https://www.damp-solutions.com/blog/what-is-red-mould/