My alk is between 11 & 12 and all of my other parameters would be considered in the normal range. Should I do something to bring it down and if so what? If alk is to high what will it hurt?
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Some folks seem to have problems with stony corals at high alkalinity levels when they are running GFO or carbon dosing or using a calcium reactor. If that doesn't describe you, then I predict no problem. And if you aren't having a problem (corals look great, tank looks great) then don't do anything about it!
FWIW, 11-12 is the "high side" of the recommended range for alkalinity - 7-8 being on the low side. I recommend the high side for most folks (aside from the noted exceptions) due to the margin of safety if gives you before alk consumption in the tank could potentially dip alk below 7. Alkalinity below 7 dKH will not give adequate protection against pH swings.
-Matt
Muriatic Acid will bring down ALK. 11-12 is not out of range though, your right there.
I carbon dose
My alk is between 11 & 12 and all of my other parameters would be considered in the normal range. Should I do something to bring it down and if so what? If alk is to high what will it hurt?
He is using reef crystals. I am also using RC and having the same problem. Its gotta be the salt.Unless you did something to have it spike that high. (accidentally left doser on). Then I would just let it come down on its own. Defiantly want to check your salt mix to see if thats where its coming from.