AA Aquarium GKM Internal UV Purifier & Algae Remover (up to 450L) Plant Substrates Depending on whether this is

Depending on whether this is in stock with the supplier

For small aquariums up to 55 litres

ensures the right temperature in the LIDO 120 LED

whether running internally or externally

It comes with a suction cup

AA Aquarium GKM Internal UV Purifier & Algae Remover (up to 450L) Plant Substrates Depending on whether this isThis 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