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- 5 years
I was wondering if anyone have a UV Sterilizer for their freshwater tank? Also wondering what the pros and cons were. I used to have one myself years ago powered by like a fountain pump. And far as I can remember I didn't have problems with my fish. I was thinking when I get a bigger tank of getting one. The only concern I have would be if it would disrupt the beneficial bacteria in the tank as well as the bad stuff in the tank.