Reef Central Online Community - View Single Post - Calcium not getting consumed, Alk falling at a steady rate!!

bertoni · 05/02/2018, 09:49 PM

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That's fairly common for tanks that get a regular water change, or with low growth rates. The rate of consumption of calcium is 20 ppm per 2.8 dKH, so I wouldn't worry. A fall of 0.2 dKH per day means it'll take 14 days to drop 20 ppm, which is close to the noise limits of our test kits. Water changes probably can keep up with the demand.

05/02/2018, 09:49 PM	#2
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 88,616	*To Reef Central* That's fairly common for tanks that get a regular water change, or with low growth rates. The rate of consumption of calcium is 20 ppm per 2.8 dKH, so I wouldn't worry. A fall of 0.2 dKH per day means it'll take 14 days to drop 20 ppm, which is close to the noise limits of our test kits. Water changes probably can keep up with the demand. __________________ Jonathan Bertoni