My better half swears blind that coloured toilet paper is harmful to fish. So here is some fish-friendly white. Made from PeterM's version of molumen's roll.
白色衛生紙
BATHROOM、Fun Flyers、hygiene、paper、remix+125、roll、tissue、toilet、Toilets
浴室、有趣的傳單、衛生、紙、混音+ 125、滾、組織、廁所、洗手間
資料來源：openclipart ( https://openclipart.org/ )