How does the disappearing black dot test work? Do I wait till it begins to disappear or till I can no longer see it(as far as knowing when to stop counting drops)?
Re: Algae problem
How does the disappearing black dot test work? Do I wait till it begins to disappear or till I can no longer see it(as far as knowing when to stop counting drops)?
Last edited by Watermom; 07-22-2012 at 08:14 PM. Reason: delete quote since it wasn't appearing correctly
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