Review on 🐠 OXYFUL 36W UV Ultraviolet Light Clarifier for Aquariums, Koi Ponds, and Fish Tanks - Non-Submersible Lamp Filter, 21.5 Inches by Josie Stevens

Installed on a 55 liter aquarium that had a large algal bloom and lots of tropical fish. At the same time, there was noticeably less green on the first day and it was whiter and cloudier. After 5 days everything was crystal clear. Did the person change the filter on my palette but it was worth it. The unit heats up slightly at a flow rate of approximately 300-400 gallons per hour.