Unfortunatley no one has mentioned lighting as a factor for coraline growth. One would have a very hard time growing much coraline under just 6500k Iwasaki lights no matter what your alk or calcium levels are.
Strong actinic spectrum, dim lighting or very blue spectrum lights are nessecary.
cheers
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No matter what the morrow brings, inventors keep inventing things.
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Jonathan
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www.cakerybakery.ca
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