I have questions that need answers.
what HOB skimmer brands do you like? What brands should I stay away from???
Does anyone know if Miracle Grow be used to grow rotifers? Or is it for phytoplankton only? Thanks, gad
Updated 07-08-2010 at 05:42 PM by melev
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Question? When ph probes start losing their calibration, which way do they shift the readings to? Do they read higher or lower? Maybe they are all different?