| Re: "Chronicle Marina del Filón de los Carlos" Add a powerhead and aim it at the area that the cyano is growing. That typically means you don't have enough circulation at that spot. Once your tank matures a little more and the cyano goes away, you can remove that PH.
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Terry
150g predator tank full of killers. Soon to be upgraded to a 360g. 450g reef
300g sump.
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