120cm Aquariums

Shop 120cm aquariums in the UK, perfect for larger aquascapes, planted tanks and high-impact display aquariums. Our range includes premium glass aquariums designed for both beginner and advanced setups, offering the space needed for detailed layouts and thriving aquatic environments. The OptiGlass 120 aquarium is a popular choice, featuring ultra-clear glass for a clean, high-end look that enhances the colours of plants, fish and hardscape. For a complete setup, explore our OptiGlass 120 aquarium and cabinet bundle, providing a stable and stylish base for your aquarium. Whether you're creating a large planted aquascape or a statement freshwater tank, our 120cm aquariums offer the perfect foundation. All aquariums are suitable for freshwater use and available with UK delivery from Horizon Aquatics.