therootcause

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I'm curious to know what salt you are using and how you are measuring salinity and alkalinity.
 

bushdoc

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More info needed, what salt mixture U use, do you dose Ca/ alk, what corals U have?
 
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I never added ALK and I use Red Sea Coral salt which is 12dkh. I may be switching to Fritz’s reef salt. But may have issues dosing micro nutrients not having test kits for those.
I use a lot of Red Sea products. Red Sea also have another salt but mag and calcium are much lower but I may have to deal with that over higher ALK levels
 

bushdoc

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Generally it’s recommended to use salt mixture with parameters close to those you want to keep. If you would like to keep your dKH around 9, I would recommend to use salt mixture closest to that. It is generally easier to use salt with slightly lower alkalinity and then supplement it , than use salt with higher alkalinity and lower it or wait for corals to consume it.
 

Randy Holmes-Farley

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I never added ALK and I use Red Sea Coral salt which is 12dkh. I may be switching to Fritz’s reef salt. But may have issues dosing micro nutrients not having test kits for those.
I use a lot of Red Sea products. Red Sea also have another salt but mag and calcium are much lower but I may have to deal with that over higher ALK levels

I'm not sure what you mean by micronutrients (that's not really a seawater/oceanography terminology) but I would not dose nutrients without either a measurement, or an indication from an organism that it was suffering and you had strong reason to believe a specific element was needed.
 
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hexcolor reef

hexcolor reef

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I'm not sure what you mean by micronutrients (that's not really a seawater/oceanography terminology) but I would not dose nutrients without either a measurement, or an indication from an organism that it was suffering and you had strong reason to believe a specific element was needed.
I meant to text trace elements.
As far as calcium and magnesium my corals absorb a lot so I didn’t want to switch sea salt
 
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hexcolor reef

hexcolor reef

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IMG_0161.jpeg

Just picked up Red Sea salt with lower 8kh
Should be better for my all reef system
 

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