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Is a UV sterilizer safe for my turtle tank to get rid of algae?

Updated On September 23rd, 2025

Pet's info: Reptile | Turtle | Female | unspayed | 11 months and 13 days old

Is it safe to buy a UV Sterilizer Green killer filter for my turtles? The water gets dirty really fast and I've pretty much tried everything, but the algae keeps growing fast. The problem is that I've seen a lot of negative reviews on that filter, saying that it got their fish killed. Now, I've done some research on that and found out that that UV lights could damage both animals and humans, however the very few reviews that were written by turtle owners were positive. Is it totally safe?

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1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on April 19th, 2021

A UV sterilizer is safe to use in a turtle tank. To maximize benefits, be sure the water filter is rated for at least twice the volume of the tank, remove uneaten food promptly, monitor water temp closely, perform regular partial water changes and use a timer for the "regular" light. These actions will minimize algae growth.

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