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Old 01-30-2015, 07:30 PM   #1
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BRS two-part dosing question

Does anyone here use the BRS two-part dosing solution? I have a few questions about using it.
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Old 01-31-2015, 09:54 AM   #2
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I've used it for about two years. I have both on separate dosers. What are your questions?


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Old 01-31-2015, 10:46 AM   #3
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Well, the website (BRS) says to add the same amount of Alk as you do Ca every day. My tank's numbers do not apply. Is it ok to add different amounts of Alk and Ca due to my tank's consumption?

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Old 01-31-2015, 10:51 AM   #4
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Definitely do not add more than you need. Every tank is different. Keep your system as close to nsw as you can, and avoid fluctuations if at all possible.
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Old 01-31-2015, 10:55 AM   #5
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My tank's Ca drops 10ppm a day and the Alk drops 0.9dKh a day. When I plug those numbers into their calculator, the amount to dose is different from each other. Do I just add the same amount averaged from the two, or add the amount that the calculator says, even though they are different?

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Old 01-31-2015, 11:21 AM   #6
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I'm not sure I'm following your question. There is no need to dose the same amount of alk and calcium. My tank routinely uses more calcium than the ash. Also keep in mind that their standard mixing ratios are different for calcium than the ash.


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Old 01-31-2015, 01:06 PM   #7
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I get that. I watched their video on two part dosing and it said to add the same amount for both sides. If you can, watch the video on youtube and see. It kinda confuses me.

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Old 01-31-2015, 03:48 PM   #8
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You want to add the amount to keep your Ca around 420 and you Alk 11-7. Opinions vary on Alk with the 7 being closer to natural sea water. I ALWAYS go through Ca much faster than Alk


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Old 01-31-2015, 04:37 PM   #9
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I keep my Ca around 430. So, in order for me to keep it there, I add approx. 80ml each day. The calculator says to add only 57ml of Alk to accommodate my usage, which is approx. 0.9 - 1.0dKh each day. So, which do I dose?

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Old 01-31-2015, 07:16 PM   #10
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I hardly ever add calcium. Just alkalinity.
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