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If temperature is > 30 °C (86 °F) and chlorine or ammonia levels are low
specifically developed for hardiness and their ability to adapt to a wide variety of environmental conditions
The Top Output setting provides maximum circulation and oxygenation
For small aquariums up to 55 litres
AA Aquarium GKM Internal UV Purifier & Algae Remover (up to 450L) Plant Substrates If temperature is > 30This 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
