EHEIM ReeflexUV 1500 is a heavy-duty UV sterilizer for very large aquariums and pond systems. Designed for maximum flow rates and water volumes (suitable for well over 200 gallons), the ReeflexUV 1500 houses a powerful UV lamp in a reflective chamber that blitzes algae blooms and infectious microorganisms as water circulates through. This model ensures crystal clear water and acts as an effective preventative against fish diseases by killing free-floating pathogens. Even at higher flow, its efficient design grants the water sufficient UV exposure thanks to the mirror-like interior. Plumbing into your filtration loop is easy, and like other Reeflex units, it’s a simple plug-in-and-run device (“Non WiFi” standard control). Given its capacity, the 1500 is ideal for monster fish tanks or ponds where water quality is paramount. It operates safely with a protective casing and an indicator to show the UV lamp status. Keep your large aquatic exhibit sparkling and healthier with this professional-grade sterilizer in line.