Jonathan, maintaining Ca was always easy with Kalk and the Osmolator's Kalk Dispenser.
grallster - I remember that from a while ago but thought it would be too difficult to get the ingredients here in Japan. I could go the dosing pump route I guess but I think it would need to be a huge pump. And using the B-Ionic 2-part isn't exactly economical when you need 1 gall Alk per month at least. But before I add more coral I need to get PO4 under control and find a way to maintain Alk whether it be homemade, reactor or dosing pump.
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Laurence Flynn
340g In-Wall Envision Tank and 150g Sump (fuge and grow-out).
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