Gastrostomy tubes are commonly used in people who are malnourished or at risk of malnutrition and require long-term artificial nutrition support but have a functional gastrointestinal tract. They generally provide a safe and effective access route for nutrition, hydration and medicine administration. This article describes the two main types of gastrostomy tubes seen in clinical practice, percutaneous endoscopic gastrostomy (PEG) tubes and radiologically inserted gastrostomy (RIG) tubes. The author explores the main differences between these tubes in terms of insertion technique, aftercare, replacement and removal, and outlines associated complications. To ensure patient safety and the delivery of high-quality care, it is essential that nurses involved in the care of patients with a PEG or RIG tube have a comprehensive understanding of these enteral feeding tubes and can recognise, and ideally prevent, potential complications.