AA Aquarium GKM Internal UV Purifier & Algae Remover (up to 450L) Plant Substrates ensures the right temperature in

ensures the right temperature in the LIDO 120 LED

If temperature is > 30 °C (86 °F) and chlorine or ammonia levels are low

Depending on whether this is in stock with the supplier

whether running internally or externally

The baskets are precision-engineered to eliminate water by-pass

AA Aquarium GKM Internal UV Purifier & Algae Remover (up to 450L) Plant Substrates ensures the right temperature inThis Green Killing Machine (GKM) UV purifier is ideal to help polish the water creating a crystal clear, pathogen free aquarium. The item comes with its own pump, is fully submersible in your aquarium or filter sump, plus a mini LED light lets you know when the UV bulb needs to be changed for effectiveness. The water passes through the chamber in a zigzag motion to ensure maximum time of water contact with the UV light. The UV light is concealed