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Old 08/27/2018, 07:41 PM   #1
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Join Date: Mar 2012
Posts: 1
Question Questions on using Kalkwasser and a Refugium

I already know that a refugium is a great way to naturally filter, and, while using a reverse lighting schedule and cheato bed, decrease NO3 and PO4 while reducing PH swings during DT (Display Tank) photo period OFF times. Another benefit is that the PH in tank increases with refugium photo period ON times due to CO2 reduction because of the Macroalgae of your choosing photosynthesizing nutrients that it comes in contact with.

Here is where the question comes.

If using Kalkwasser solution raises PH and ALK, does that mean it affects the cheato in my fuge, and its input nutrients? Does changing the chemical composition of the water prior to cheato filtration affect the overall end result of cheato filtration?
I.E.: lesser nutrient reduction due to the higher input ALK?

It would stand to reason that a higher ALK would cause a resultant increase in nutrient breakdown. Every organism operates more efficiently at a higher PH, to an extent, but i still feel like this question has never been answered... HELP...

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