petem
Member
I finally installed a uv sterilizer.(turbotwist 9w) on my 72g tank after 4 years. I was told this would aid in retarding the growth of hair algae that I've been getting because I upgraded my lighting system. Which by the way, is Orbit, two daylights, 10,000k and 6500k two actinics 450 and 420nm. Now, I was also told that I should leave the uv sterilizer on for two weeks straight but then shut it off, and then let it run intermittently? is this correct? or do you all leave it on all of the time.