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Super Moderator
Multiple tanks, reef, seahorse and fresh water
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26,402 Posts
I run lights on during cycle, I don’t believe lights out to be an effective way to eliminate unwanted algae or affect the bacteria , I have always ran them during the cycle for as long as I been keeping marine tank. I may run them for a shorter period and now since LEDs, not as intense.
 

·
Super Moderator
Multiple tanks, reef, seahorse and fresh water
Joined
·
26,402 Posts
It's been a decade since I've been in the hobby. Caught a deal on a drilled 120 with a sump lights rock etc...but these LED lights are bright. I used to thing HQI DE were bright..
It’s takes a little bit to dial in LEDs, I also miss MH lighting.
 
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