AA Aquarium GKM Internal UV Purifier & Algae Remover (up to 450L) Plant Substrates For small aquariums up to

For small aquariums up to 55 litres

Simply place Ammonia Alert® and pH Alert® visibly anywhere in the aquarium or filter

The Top Output setting provides maximum circulation and oxygenation

specifically developed for hardiness and their ability to adapt to a wide variety of environmental conditions

AA Aquarium GKM Internal UV Purifier & Algae Remover (up to 450L) Plant Substrates For small aquariums up toThis 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