Alkalinity rising quickly

BRS

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My alkalinity keeps rising and my corals are all taking a hit over the past week I am up 1 dkh I am not dosing or anything I haven’t put my hands in the tank in about 2 weeks when I last did a water change I do one this Sunday. Please help I am using salifter test kit and I have been testing very frequently. Here is my log or testing.

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Randy Holmes-Farley

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You can lower alkalinity with sodium bisulfate (or muriatic acid). Seachem acid buffer contains this.

It is best done in the water change water (you can drop alk there as low as you want) since it drops pH and you need to aerate to bring it up, but could be done very slowly in an aquarium.

 
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You can lower alkalinity with sodium bisulfate (or muriatic acid). Seachem acid buffer contains this.

It is best done in the water change water (you can drop alk there as low as you want) since it drops pH and you need to aerate to bring it up, but could be done very slowly in an aquarium.

I just did a water change 1 minute ago and the dkh of the new water was 9.4 so hopefully that will help
 
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ying yang

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Are you stirring the salt before adding it to the water?
Why stir the salt before adding it to the water to be mixed ?

So that it doesnt clump together and elements stick together or what ?
I never stir the salt and never heard that its good practice to stir the salt first before adding it to the water to be mixed.
 
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Some salts separate over time and you will get fluctuations in the levels of the salt. So the alkalinity and mag could separate so you could be making saltwater with a dkh of 4 and mag of 1600.
 

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I tried dosing in may but I quickly stopped because I lost a frag and at the time I only had 4 so it impacted the amount needed it was a milipora normally it has been rising just never this quickly.

But has the alk been rising since the tank was set up, or only for the time frame listed here?
 
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