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Originally Posted by reef1  low light how low could i go? could i just turn on the blue actinic lighting and how many hours? and not turn on the daylight! just to have a good coralline growth! im not going to have any corals just live rocks!! |
When I start a tank and I want to encourage coralline growth, I run the actinics only for about 14-16 hours a day.
I also seed the tank with coralline scrapings from a mature tank and leave the skimmer off for the first month or so.