Aquatic Maintenance Why is my UV light not killing algae? March 1, 2026 by Tanp | Leave a Comment It’s frustrating when your UV light isn’t effectively controlling algae in your pond or aquarium. The most common reasons for a UV light’s failure to kill algae include insufficient wattage, improper water flow rate, algae buildup on the UV sleeve, and incorrect bulb lifespan. Ensuring your UV sterilizer is properly sized and maintained is key […] Read more ยป