Well Steve, For the past 2 years on my 90g, lit with Iwasaki's. I could never get corraline to grow. I was running a reactor, levels were good. Put corraline covered rock's into the tank and the corraline would dissappear.
Now with the 230. I have Lot's of light over the tank but I ditched the Iwasaki's. I now have the radiums (400w) times 2 and sun aquatics 10K (250w) times 2. My corraline is starting to show up. It's not a deep purple but more of a light pink.
Anyway, I want to change the 10k bulbs to a more blue bulb soon. At that point I bet I can expect more corraline to show up.
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No matter what the morrow brings, inventors keep inventing things.
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Jonathan
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