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- Jan 20, 2019
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I bought the only doser I have 2 months ago. It is the ecotech versa, can only afford one at the moment, so I chose carbocalcium , to do both calcium and alkalinity in 1 doser.
It’s a 180 gallon tank, with a 100 gallon stock tank tied into it, so roughly 270 gallons of water.
Salinity 1.025
I am currently dosing 50 mls of carbocalcium. However, when checking the alkalinity, usually every day, at rough the same time, (salifert kit) my alk I’ll dose up to 7.8, and 24 hours later, even with the doser dosing, I’ll often be at 7.3
Now to throw a wrench in this, I am running a korallin sulphur denitrator.
In order to get the alk back to 7.8, I dose in one shot by hand 60 ml of bright well reef code buffer (the calculator says to use 60 ml given volume of tank and how much I need to increase.
I think the denitrator is eating up a lot of alk, because my calcium is rising , so I’m thinking the dentiteator is using up the alk, but being carbo calcium is putting in both, one is depleting and the other is not .
Aside from getting a separate doser, and using one to dose more alk , the other less
Calcium, can I rely on water change to balance calcium.
For instance if I start at 420, and carbo calcium , inside enough to keep up with alk demand , and calcium creeps up to 470–480, while alk stays at 7.8, if I do a water change of 15-20 percent every 2 weeks, with new water measuring 410 calcium, this bring the tank level of 480 down, would that be an appropriate way, or can calcium just rise up ?
It’s a 180 gallon tank, with a 100 gallon stock tank tied into it, so roughly 270 gallons of water.
Salinity 1.025
I am currently dosing 50 mls of carbocalcium. However, when checking the alkalinity, usually every day, at rough the same time, (salifert kit) my alk I’ll dose up to 7.8, and 24 hours later, even with the doser dosing, I’ll often be at 7.3
Now to throw a wrench in this, I am running a korallin sulphur denitrator.
In order to get the alk back to 7.8, I dose in one shot by hand 60 ml of bright well reef code buffer (the calculator says to use 60 ml given volume of tank and how much I need to increase.
I think the denitrator is eating up a lot of alk, because my calcium is rising , so I’m thinking the dentiteator is using up the alk, but being carbo calcium is putting in both, one is depleting and the other is not .
Aside from getting a separate doser, and using one to dose more alk , the other less
Calcium, can I rely on water change to balance calcium.
For instance if I start at 420, and carbo calcium , inside enough to keep up with alk demand , and calcium creeps up to 470–480, while alk stays at 7.8, if I do a water change of 15-20 percent every 2 weeks, with new water measuring 410 calcium, this bring the tank level of 480 down, would that be an appropriate way, or can calcium just rise up ?

